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Solution
Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
The sum to infinity of the progression 9−3+1−‌
1
3
+............ is
The sum to infinity of the progression 9−3+1−‌
1
3
+............ is
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
If ‌nC12=‌nC6 then ‌nC2=
If ‌nC12=‌nC6 then ‌nC2=
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
The middle term in the expansion of (x−‌
1
x
)18 is
The middle term in the expansion of (x−‌
1
x
)18 is
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
If α,β,γ are the roots of the equation 2x3−3x2+6x+1=0, then α2+β2+γ2 is equal to
If α,β,γ are the roots of the equation 2x3−3x2+6x+1=0, then α2+β2+γ2 is equal to
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
The digit in the units place in the number 7289 is
The digit in the units place in the number 7289 is
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
When 2301 is divided by 5 , the least positive remainder is .....................
When 2301 is divided by 5 , the least positive remainder is .....................
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
The contrapositive of "If two triangles are identical, then these are similar" is .................
The contrapositive of "If two triangles are identical, then these are similar" is .................
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
The contrapositive of the inverse of p→∼q is ..........
The contrapositive of the inverse of p→∼q is ..........
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
The converse of the contrapositive of p→q is ...............
The converse of the contrapositive of p→q is ...............
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
If ω is a complex cube-root of unity then, |
1ωω
ωω21′
ω21ω
| is equal to ...................
If ω is a complex cube-root of unity then, |
1ωω
ωω21′
ω21ω
| is equal to ...................
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
The solutions of the equation |
x2−1
25x
−12x
|=0 are ...............
The solutions of the equation |
x2−1
25x
−12x
|=0 are ...............
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
If A=[
35
20
] and B=[
117
0−10
] then, |AB| is equal to
If A=[
35
20
] and B=[
117
0−10
] then, |AB| is equal to
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
The inverse of the matrix [
5−2
31
] is
The inverse of the matrix [
5−2
31
] is
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
The projection of the vector 2
^
i
+
^
j
−3
^
k
 on the vector
^
i
−2
^
j
+
^
k
 is .....................
The projection of the vector 2
^
i
+
^
j
−3
^
k
 on the vector
^
i
−2
^
j
+
^
k
 is .....................
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
A unit vector perpendicular to the plane containing the vectors
^
i
−
^
j
+
^
k
 and −
^
i
+
^
j
+
^
k
, is ...............
A unit vector perpendicular to the plane containing the vectors
^
i
−
^
j
+
^
k
 and −
^
i
+
^
j
+
^
k
, is ...............
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
If
^
a
,
^
b
 and
^
c
 are mutually perpendicular unit vectors, then |
^
a
+
^
b
+
^
c
| is equal to .....................
If
^
a
,
^
b
 and
^
c
 are mutually perpendicular unit vectors, then |
^
a
+
^
b
+
^
c
| is equal to .....................
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
The identity element in the group M={(
xx
xx
)∣x∈R,x≠0} with respect to matrix multiplication is ....................
The identity element in the group M={(
xx
xx
)∣x∈R,x≠0} with respect to matrix multiplication is ....................
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
In the group G={1,3,7,9} under multiplication modulo 10 , the inverse of 3 is .................
In the group G={1,3,7,9} under multiplication modulo 10 , the inverse of 3 is .................
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
In the group {0,1,2,4,5} under addition modulo 6 a subgroup is ..................
In the group {0,1,2,4,5} under addition modulo 6 a subgroup is ..................
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
In the group (Q+,*) of positive rational numbers w.r.t. the binary operation * defined a*b=‌
ab
3
‌∀a,b∈Q+the solution of the equation 5*x=4−1 in Q+is ..............
In the group (Q+,*) of positive rational numbers w.r.t. the binary operation * defined a*b=‌
ab
3
‌∀a,b∈Q+the solution of the equation 5*x=4−1 in Q+is ..............
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
(0,−1) and (0,3) are two opposite vertices of a square. The other two vertices are .............
(0,−1) and (0,3) are two opposite vertices of a square. The other two vertices are .............
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
The equation to the line bisecting the join of (3,−4) and (5,2) and having its intercepts on the x-axis and the y-axis in the ratio 2:1 is ..........
The equation to the line bisecting the join of (3,−4) and (5,2) and having its intercepts on the x-axis and the y-axis in the ratio 2:1 is ..........
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
The distance between the pair of parallel lines x2+2xy+y2−8ax−8ay−9a2=0 is ..................
The distance between the pair of parallel lines x2+2xy+y2−8ax−8ay−9a2=0 is ..................
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
The equation to the circle with centre (2,1) and touching the line 3x+4y=5 is ..............
The equation to the circle with centre (2,1) and touching the line 3x+4y=5 is ..............
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
The condition for a line y=2x+c to touch the circle x2+y2=16 is
The condition for a line y=2x+c to touch the circle x2+y2=16 is
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
The two circles x2+y2−2x+22y+5=0 and x2+y2+14x+6y+k=0 intersect orthogonally provided k is equal to ...................
The two circles x2+y2−2x+22y+5=0 and x2+y2+14x+6y+k=0 intersect orthogonally provided k is equal to ...................
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
The radius of the circle x2+y2+4x+6y+13=0 is ....................
The radius of the circle x2+y2+4x+6y+13=0 is ....................
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
The centre of the circle x=2+3‌Cos‌θ,y=3‌Sin‌θ−1 is ..................
The centre of the circle x=2+3‌Cos‌θ,y=3‌Sin‌θ−1 is ..................
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
The sum of the focal distances of any point on the conic ‌
x2
25
+‌
y2
16
=1 is ................
The sum of the focal distances of any point on the conic ‌
x2
25
+‌
y2
16
=1 is ................
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
The eccentricity of the hyperbola ‌
x2
16
−‌
y2
25
=1 is ....................
The eccentricity of the hyperbola ‌
x2
16
−‌
y2
25
=1 is ....................
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
The ends of the latus-rectum of the conic x2+10x−16y+25=0 are ................
The ends of the latus-rectum of the conic x2+10x−16y+25=0 are ................
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
The equation to the hyperbola having its eccentricity 2 and the distance between its foci 8 is .......................
The equation to the hyperbola having its eccentricity 2 and the distance between its foci 8 is .......................
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
The solution of Sin−1x−Sin−12x=∓‌
π
3
 is ..............
The solution of Sin−1x−Sin−12x=∓‌
π
3
 is ..............
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
In a △ABC if the sides are a=3,b=5 and c=4, then Sin‌
B
2
+Cos‌
B
2
 is equal to ..................
In a △ABC if the sides are a=3,b=5 and c=4, then Sin‌
B
2
+Cos‌
B
2
 is equal to ..................
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
The value of Cos(270∘+θ)‌Cos(90∘−θ)−Sin(270∘−θ)‌Cos‌θ is ..................
The value of Cos(270∘+θ)‌Cos(90∘−θ)−Sin(270∘−θ)‌Cos‌θ is ..................
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
If 12Cot2θ−31‌Cosec‌θ+32=0, then the value of Sin‌θ is ..................
If 12Cot2θ−31‌Cosec‌θ+32=0, then the value of Sin‌θ is ..................
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
The circum-radius of the triangle whose sides are 13,12 and 5 is ...........
The circum-radius of the triangle whose sides are 13,12 and 5 is ...........
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
If Tan−1x+Tan−1y=‌
π
4
 then ................
If Tan−1x+Tan−1y=‌
π
4
 then ................
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
The general solution of Sin‌x−Cos‌x=√2, for any integer n is
The general solution of Sin‌x−Cos‌x=√2, for any integer n is
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
The amplitude of ‌
1+i√3
√3+i
 is ...............
The amplitude of ‌
1+i√3
√3+i
 is ...............
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
The modulus and amplitude of ‌
1+2i
1−(1−i)2
 are .....................
The modulus and amplitude of ‌
1+2i
1−(1−i)2
 are .....................
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
The real part of ‌
1
1+Cos‌θ+i‌Sin‌θ
 is ...................
The real part of ‌
1
1+Cos‌θ+i‌Sin‌θ
 is ...................
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
Lim
x→0
‌
Tan‌x−Sin‌x
x3
 is equal to .................
Lim
x→0
‌
Tan‌x−Sin‌x
x3
 is equal to .................
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
If y=‌
ex+e−x
ex−e−x
 then ‌
dy
dx
 is equal to ..................
If y=‌
ex+e−x
ex−e−x
 then ‌
dy
dx
 is equal to ..................
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
If f(x)={
‌
Sin‌5‌x
x2+2x
x≠0
k+‌
1
2
x=0
. is continuous at x=0 then the value of k is
If f(x)={
‌
Sin‌5‌x
x2+2x
x≠0
k+‌
1
2
x=0
. is continuous at x=0 then the value of k is
Q.46 Correct
Q.46 In-correct
Q.46 Unattempt
If y=Tan−1‌
√1+x2−√1−x2
√1+x2+√1−x2
, then ‌
dy
dx
 is equal to .................
If y=Tan−1‌
√1+x2−√1−x2
√1+x2+√1−x2
, then ‌
dy
dx
 is equal to .................
Q.47 Correct
Q.47 In-correct
Q.47 Unattempt
If x=Sin‌t,y=Cos‌p‌t; then ................
If x=Sin‌t,y=Cos‌p‌t; then ................
Q.48 Correct
Q.48 In-correct
Q.48 Unattempt
If ST and SN are the lengths of the subtangent and the subnormal at the point θ=‌
π
2
 on the curve x=a(θ+Sin‌θ),y=a(1−Cos‌θ),a≠1, then ............
If ST and SN are the lengths of the subtangent and the subnormal at the point θ=‌
π
2
 on the curve x=a(θ+Sin‌θ),y=a(1−Cos‌θ),a≠1, then ............
Q.49 Correct
Q.49 In-correct
Q.49 Unattempt
If θ is the acute angle of intersection at a real point of intersection of the circle x2+y2=5 and the parabola y2=4x then Tan‌θ is equal to
If θ is the acute angle of intersection at a real point of intersection of the circle x2+y2=5 and the parabola y2=4x then Tan‌θ is equal to
Q.50 Correct
Q.50 In-correct
Q.50 Unattempt
A spherical balloon is being inflated at the rate of 35‌cc∕min. The rate of increase of the surface area of the balloon when its diameter is 14‌cm is ..................
A spherical balloon is being inflated at the rate of 35‌cc∕min. The rate of increase of the surface area of the balloon when its diameter is 14‌cm is ..................
Q.51 Correct
Q.51 In-correct
Q.51 Unattempt
∫‌
Sin(2x)‌dx
1+Cos2x
=
∫‌
Sin(2x)‌dx
1+Cos2x
=
Q.52 Correct
Q.52 In-correct
Q.52 Unattempt
∫‌
ex(1+Sin‌x)
1+Cos‌x
‌dx=
∫‌
ex(1+Sin‌x)
1+Cos‌x
‌dx=
Q.53 Correct
Q.53 In-correct
Q.53 Unattempt
∫‌
1+Tan‌x
e−x‌Cos‌x
‌dx=
∫‌
1+Tan‌x
e−x‌Cos‌x
‌dx=
Q.54 Correct
Q.54 In-correct
Q.54 Unattempt
π
2
∫
π
4
Cosec2x‌dx=
π
2
∫
π
4
Cosec2x‌dx=
Q.55 Correct
Q.55 In-correct
Q.55 Unattempt
π
4
∫
0
log(1+Tan‌x)‌dx=
π
4
∫
0
log(1+Tan‌x)‌dx=
Q.56 Correct
Q.56 In-correct
Q.56 Unattempt
The area bounded by the parabola y2=4ax and the line x=a and x=4a is ...............
The area bounded by the parabola y2=4ax and the line x=a and x=4a is ...............
Q.57 Correct
Q.57 In-correct
Q.57 Unattempt
A population p(t) of 1000 bacteria introduced into nutrient medium grows according to the relation p(t)=1000+‌
1000t
100+t2
. The maximum size of this bacterial population is ..................
A population p(t) of 1000 bacteria introduced into nutrient medium grows according to the relation p(t)=1000+‌
1000t
100+t2
. The maximum size of this bacterial population is ..................
Q.58 Correct
Q.58 In-correct
Q.58 Unattempt
The differential equation representing a family of circles touching the y-axis at the origin is ................
The differential equation representing a family of circles touching the y-axis at the origin is ................
Q.59 Correct
Q.59 In-correct
Q.59 Unattempt
The area of the region bounded by the curve 9x2+4y2−36=0 is .................
The area of the region bounded by the curve 9x2+4y2−36=0 is .................
Q.60 Correct
Q.60 In-correct
Q.60 Unattempt
The general solution of the differential equation (2x−y+1)dx+(2y−x+1)dy=0 is
The general solution of the differential equation (2x−y+1)dx+(2y−x+1)dy=0 is
Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
When a body falls in air, the resistance of air depends to a great extent on the shape of the body. 3 different shapes are given. Identify the combination of air resistances which truly represents the physical situation. (The cross sectional areas are the same)

When a body falls in air, the resistance of air depends to a great extent on the shape of the body. 3 different shapes are given. Identify the combination of air resistances which truly represents the physical situation. (The cross sectional areas are the same)

Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
The adjacent figure is the part of a horizontally stretched net. Section AB is stretched with a force of 10N. The tensions in the sections BC and BF are
The adjacent figure is the part of a horizontally stretched net. Section AB is stretched with a force of 10N. The tensions in the sections BC and BF are
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
Out of the following four dimensional quantities, which one qualifies to be called a dimensional constant?
Out of the following four dimensional quantities, which one qualifies to be called a dimensional constant?
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
The relationship between the force F and position x of a body is as shown in the figure. The work done in displacing the body from x=1m to x=5m will be ................
The relationship between the force F and position x of a body is as shown in the figure. The work done in displacing the body from x=1m to x=5m will be ................
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
From the top of a tower two stones, whose masses are in the ratio 1:2 are thrown - one straight up with an initial speed u and the second straight down with the same speed u. Then, neglecting air resistance ...........
From the top of a tower two stones, whose masses are in the ratio 1:2 are thrown - one straight up with an initial speed u and the second straight down with the same speed u. Then, neglecting air resistance ...........
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
If M is the mass of the earth and R its radius, the ratio of the gravitational acceleration and the gravitational constant is ..................
If M is the mass of the earth and R its radius, the ratio of the gravitational acceleration and the gravitational constant is ..................
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
A student unable to answer a question on Newton's laws of motion attempts to pull himself up by tugging on his hair. He will not succeed
A student unable to answer a question on Newton's laws of motion attempts to pull himself up by tugging on his hair. He will not succeed
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
From the adjacent figure, the correct observation is ....................
From the adjacent figure, the correct observation is ....................
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
Which one of the following is not a unit of Young's modulus?
Which one of the following is not a unit of Young's modulus?
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
A piece of blue glass heated to a high temperature and a piece of red glass at roon temperature, are taken inside a dimly lit room. Then .............
A piece of blue glass heated to a high temperature and a piece of red glass at roon temperature, are taken inside a dimly lit room. Then .............
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
The wavelength of the radiation emitted by a body depends upon ................
The wavelength of the radiation emitted by a body depends upon ................
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
An ideal monoatomic gas is taken around the cycle ABCDA as shown in the P-V diagram. The work done during the cycle is given by ..................
An ideal monoatomic gas is taken around the cycle ABCDA as shown in the P-V diagram. The work done during the cycle is given by ..................
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
Which mirror is to be used to obtain a parallel beam of light from a small lamp?
Which mirror is to be used to obtain a parallel beam of light from a small lamp?
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
Which of the following is a wrong statement?
Which of the following is a wrong statement?
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt

Identify the wrong description of the above figures.

Identify the wrong description of the above figures.
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
Infrared radiation was discovered in 1800 by ................
Infrared radiation was discovered in 1800 by ................
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
A particle on the trough of a wave at any instant will come to the mean position after a time (T= time period) ....................
A particle on the trough of a wave at any instant will come to the mean position after a time (T= time period) ....................
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
The disc of a siren containing 60 holes rotates at a constant speed of 360‌rpm. The emitted sound is in unison with a tuning fork of frequency ....................
The disc of a siren containing 60 holes rotates at a constant speed of 360‌rpm. The emitted sound is in unison with a tuning fork of frequency ....................
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
The ratio of velocity of sound in hydrogen and oxygen at STP is ..................
The ratio of velocity of sound in hydrogen and oxygen at STP is ..................
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
In an experiment with sonometer a tuning fork of frequency 256‌Hz resonates with a length of 25‌cm and another tuning fork resonates with a length of 16‌cm. Tension of the string remaining constant the frequency of the second tuning fork is ...............
In an experiment with sonometer a tuning fork of frequency 256‌Hz resonates with a length of 25‌cm and another tuning fork resonates with a length of 16‌cm. Tension of the string remaining constant the frequency of the second tuning fork is ...............
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
The apparent frequency of a note is 200‌Hz. When a listener is moving with a velocity of 40ms−1 towards a stationary source. When he moves away from the same source'with the same speed, the apparent frequency of the same note is 160‌Hz. The velocity of sound in air in m∕s is ................
The apparent frequency of a note is 200‌Hz. When a listener is moving with a velocity of 40ms−1 towards a stationary source. When he moves away from the same source'with the same speed, the apparent frequency of the same note is 160‌Hz. The velocity of sound in air in m∕s is ................
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
The wave theory of light, in its original form, was first postulated by ...............
The wave theory of light, in its original form, was first postulated by ...............
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
If a liquid does not wet glass, its angle of contact is ...................
If a liquid does not wet glass, its angle of contact is ...................
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
The magnitude of I in ampere unit is ...................
The magnitude of I in ampere unit is ...................
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
Electron of mass m and charge q is travelling with a speed v along a circular path of radius r at right angles to a uniform magnetic field of intensity B. If the speed of the electron is doubled and the magnetic field is halved the resulting path would have a radius
Electron of mass m and charge q is travelling with a speed v along a circular path of radius r at right angles to a uniform magnetic field of intensity B. If the speed of the electron is doubled and the magnetic field is halved the resulting path would have a radius
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
If the potential difference across the internal resistance r1 is equal to the emf E of the battery, then .......................
If the potential difference across the internal resistance r1 is equal to the emf E of the battery, then .......................
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
By using only two resistance coils-singly, in series, or in Parallel-one should be able to obtain resistances of 3,4,12 and 16‌ohms. The separate resistances of the coil are ....................
By using only two resistance coils-singly, in series, or in Parallel-one should be able to obtain resistances of 3,4,12 and 16‌ohms. The separate resistances of the coil are ....................
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
The electrons in the beam of a television tube move horizontally from South to North. The vertical component of the earth's magnetic field points down. The electron is deflected towards ....................
The electrons in the beam of a television tube move horizontally from South to North. The vertical component of the earth's magnetic field points down. The electron is deflected towards ....................
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
A tangent Galvanometer has a reduction factor of 1A and it is placed with the plane of its coil perpendicular to the magnetic meridian. The deflection produced when a current of 1A is passed through it is .....................
A tangent Galvanometer has a reduction factor of 1A and it is placed with the plane of its coil perpendicular to the magnetic meridian. The deflection produced when a current of 1A is passed through it is .....................
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
In the given circuit, the voltmeter records 5 volts. The resistance of the voltmeter in ohms is ....................
In the given circuit, the voltmeter records 5 volts. The resistance of the voltmeter in ohms is ....................
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
Three long, straight and parallel wires, carrying current, are arranged as shown in figure. The force experienced by a 25‌cm length of wire C is ....................
Three long, straight and parallel wires, carrying current, are arranged as shown in figure. The force experienced by a 25‌cm length of wire C is ....................
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
A 5.0 amp current is setup in an external circuit by a 6.0 volt storage battery for 6.0 minutes. The chemical energy of the battery is reduced by ..................
A 5.0 amp current is setup in an external circuit by a 6.0 volt storage battery for 6.0 minutes. The chemical energy of the battery is reduced by ..................
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
The current in a simple series circuit is 5.0‌amp. When an additional resistance of 2.0‌ohms is inserted, the current drops to 4.0‌amp. The original resistance of the circuit in ohms was ....................
The current in a simple series circuit is 5.0‌amp. When an additional resistance of 2.0‌ohms is inserted, the current drops to 4.0‌amp. The original resistance of the circuit in ohms was ....................
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
In the circuit given E=6.0V,R1=100‌ohms
R2=R3=50‌ohms
R4=75 ohms
The equivalent resistance of the circuit, in ohms, is ...................
In the circuit given E=6.0V,R1=100‌ohms
R2=R3=50‌ohms
R4=75 ohms
The equivalent resistance of the circuit, in ohms, is ...................
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
Two resistances are connected in two gaps of a metrebridge. The balance point is 20‌cm. from the zero end. A resistance of 15‌ohms is connected in series with the smaller of the two. The null point shifts to 40‌cm. The value of the smaller resistance, in ohms, is ........
Two resistances are connected in two gaps of a metrebridge. The balance point is 20‌cm. from the zero end. A resistance of 15‌ohms is connected in series with the smaller of the two. The null point shifts to 40‌cm. The value of the smaller resistance, in ohms, is ........
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
An electric field of 1500v∕m and a magnetic field of 0.40 weber ∕metre2 act on a moving electron. The minimum uniform speed along a straight line the electron could have is .................
An electric field of 1500v∕m and a magnetic field of 0.40 weber ∕metre2 act on a moving electron. The minimum uniform speed along a straight line the electron could have is .................
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
In an ammeter 10% of main current is passing through the Galvanometer. If the resistance of the Galvanometer is G, then the shunt resistance, in ohms, is ...............
In an ammeter 10% of main current is passing through the Galvanometer. If the resistance of the Galvanometer is G, then the shunt resistance, in ohms, is ...............
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
Among the following properties describing diamagnetism identify the property that is wrongly stated-
a) diamagnetic material do not have permanent magnetic moment.
b) diamagnetism is explained in terms of electromagnetic induction.
c) diamagnetic materials have a small positive susceptibility.
d) the magnetic moment of individual electrons neutralise each other.
Among the following properties describing diamagnetism identify the property that is wrongly stated-
a) diamagnetic material do not have permanent magnetic moment.
b) diamagnetism is explained in terms of electromagnetic induction.
c) diamagnetic materials have a small positive susceptibility.
d) the magnetic moment of individual electrons neutralise each other.
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
The induction coil works on the principle of ..................
The induction coil works on the principle of ..................
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
The square root of the product of inductance and capacitance has the dimension of ......................
The square root of the product of inductance and capacitance has the dimension of ......................
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
The electric flux for Gaussian surface A that enclose the charged particles in free space is ..................
(given q1=−14nc,q2=78.85nc,q3=−56nc )

The electric flux for Gaussian surface A that enclose the charged particles in free space is ..................
(given q1=−14nc,q2=78.85nc,q3=−56nc )

Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
Four metal conductors having different shapes
a) a sphere
b) cylindrical
c) pear
d) lightning conductor
are mounted on insulating stands and charged. The one which is best suited to retain the charges for a longer time is ...................
Four metal conductors having different shapes
a) a sphere
b) cylindrical
c) pear
d) lightning conductor
are mounted on insulating stands and charged. The one which is best suited to retain the charges for a longer time is ...................
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
The potential to which a conductor is raised, depends on ..................
The potential to which a conductor is raised, depends on ..................
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
The work done in carrying a charge q once round a circle of radius r with a charge Q at the centre is ...................
The work done in carrying a charge q once round a circle of radius r with a charge Q at the centre is ...................
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
An air filled parallel plate condenser has a capacity of 2‌PF. The separation of the plates is doubled and the interspace between the plates is filled with wax. If the capacity is increased to 6‌PF, the dielectric constant of wax is .......................
An air filled parallel plate condenser has a capacity of 2‌PF. The separation of the plates is doubled and the interspace between the plates is filled with wax. If the capacity is increased to 6‌PF, the dielectric constant of wax is .......................
Q.46 Correct
Q.46 In-correct
Q.46 Unattempt
Identify the wrong statement in the following. Coulomb's law correctly describes the electric force that ...................
Identify the wrong statement in the following. Coulomb's law correctly describes the electric force that ...................
Q.47 Correct
Q.47 In-correct
Q.47 Unattempt
A single slit of width a is illuminated by violet light of wavelength 400‌nm and the width of the diffraction pattern is measured as y. When half of the slit width is covered and illuminated by yellow light of wavelength 600‌nm, the width of the diffraction pattern is .....................
A single slit of width a is illuminated by violet light of wavelength 400‌nm and the width of the diffraction pattern is measured as y. When half of the slit width is covered and illuminated by yellow light of wavelength 600‌nm, the width of the diffraction pattern is .....................
Q.48 Correct
Q.48 In-correct
Q.48 Unattempt
At Kavalur in India, the astronomers using a telescope whose objective had a diameter of one metre started using a telescope of diameter 2.54m. this resulted in ...........
At Kavalur in India, the astronomers using a telescope whose objective had a diameter of one metre started using a telescope of diameter 2.54m. this resulted in ...........
Q.49 Correct
Q.49 In-correct
Q.49 Unattempt
When unpolarized light beam is incident from air onto glass (n=1.5) at the polarizing angle ...............
When unpolarized light beam is incident from air onto glass (n=1.5) at the polarizing angle ...............
Q.50 Correct
Q.50 In-correct
Q.50 Unattempt
Select the right option in the following
Select the right option in the following
Q.51 Correct
Q.51 In-correct
Q.51 Unattempt
Two coherent light beams of intensity I and 4I are superposed. The maximum and minimum possible intensities in the resulting beam are ................
Two coherent light beams of intensity I and 4I are superposed. The maximum and minimum possible intensities in the resulting beam are ................
Q.52 Correct
Q.52 In-correct
Q.52 Unattempt
From the figure describing photoelectric effect we may infer correctly that ..............
From the figure describing photoelectric effect we may infer correctly that ..............
Q.53 Correct
Q.53 In-correct
Q.53 Unattempt
The electron in a hydrogen atom makes a transition from n=n1 to n=n2 state. The time period of the electron in the initial state (n1) is eight times that in the final state (n2). The possible values of n1 and n2 are ...............
The electron in a hydrogen atom makes a transition from n=n1 to n=n2 state. The time period of the electron in the initial state (n1) is eight times that in the final state (n2). The possible values of n1 and n2 are ...............
Q.54 Correct
Q.54 In-correct
Q.54 Unattempt
If the forward voltage in a diode is increased, the width of the depletion region ....................
If the forward voltage in a diode is increased, the width of the depletion region ....................
Q.55 Correct
Q.55 In-correct
Q.55 Unattempt
Two nucleons are at a separation of one Fermi. Protons have a charge of +1.6×10−19C. The net nuclear force between them is F1, if both are neutrons, F2 if both are protons and F3 if one is proton and the other is neutron. Then ....................
Two nucleons are at a separation of one Fermi. Protons have a charge of +1.6×10−19C. The net nuclear force between them is F1, if both are neutrons, F2 if both are protons and F3 if one is proton and the other is neutron. Then ....................
Q.56 Correct
Q.56 In-correct
Q.56 Unattempt
The energy that should be added to an electron to reduce its de Broglie wavelength from one nm to 0.5‌nm is ............
The energy that should be added to an electron to reduce its de Broglie wavelength from one nm to 0.5‌nm is ............
Q.57 Correct
Q.57 In-correct
Q.57 Unattempt
Mean life of a radioactive sample is 100 seconds. Then its half life (in minutes) is ....................
Mean life of a radioactive sample is 100 seconds. Then its half life (in minutes) is ....................
Q.58 Correct
Q.58 In-correct
Q.58 Unattempt
Consider two nuclei of the same radioactive nuclide. One of the nuclei was created in a supernova explosion 5 billion years ago. The other was created in a nuclear reactor 5 minutes ago. The probability of decay during the next time is .............
Consider two nuclei of the same radioactive nuclide. One of the nuclei was created in a supernova explosion 5 billion years ago. The other was created in a nuclear reactor 5 minutes ago. The probability of decay during the next time is .............
Q.59 Correct
Q.59 In-correct
Q.59 Unattempt
Bohr's atom model assumes ...................
Bohr's atom model assumes ...................
Q.60 Correct
Q.60 In-correct
Q.60 Unattempt
Identify the property which is not characteristic for a semi-conductor ..............
Identify the property which is not characteristic for a semi-conductor ..............
Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
A mixture of two moles of carbon monoxide and one mole of oxygen, in a closed vessel is ignited to convert the carbon monoxide to carbon dioxide. If ∆H is the enthalpy change and ∆E is the change in internal energy, then,
A mixture of two moles of carbon monoxide and one mole of oxygen, in a closed vessel is ignited to convert the carbon monoxide to carbon dioxide. If ∆H is the enthalpy change and ∆E is the change in internal energy, then,
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
The cooling in refrigerator is due to .............
The cooling in refrigerator is due to .............
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
For a system in equilibrium, ∆G=0, under conditions of constant ..................
For a system in equilibrium, ∆G=0, under conditions of constant ..................
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
Molar heat of vaporisation of a liquid is 6‌kJ‌mole−1. If the entropy change is 16Jmole−1K−1, the boiling point of the liquid is ..............
Molar heat of vaporisation of a liquid is 6‌kJ‌mole−1. If the entropy change is 16Jmole−1K−1, the boiling point of the liquid is ..............
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
The temperature of the system decreases in an .................
The temperature of the system decreases in an .................
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
15 moles of H2 and 5.2 moles of I2 are mixed and allowed to attain equilibrium at 500∘C. At equilibrium, the concentration of HI is found to be 10 moles. The equilibrium constant for the formation of HI is .................
15 moles of H2 and 5.2 moles of I2 are mixed and allowed to attain equilibrium at 500∘C. At equilibrium, the concentration of HI is found to be 10 moles. The equilibrium constant for the formation of HI is .................
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
If, in the reaction N2O4↔2NO2,x is that part of N2O4 which dissociates, then the number of molecules at equilibrium will be
If, in the reaction N2O4↔2NO2,x is that part of N2O4 which dissociates, then the number of molecules at equilibrium will be
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
Which of these does not influence the rate of reaction?
Which of these does not influence the rate of reaction?
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
For the reaction A+B→C, it is found that doubling the concentration of A increases the rate by 4 times, and doubling the concentration of B doubles the reaction rate. What is the overall order of the reaction?
For the reaction A+B→C, it is found that doubling the concentration of A increases the rate by 4 times, and doubling the concentration of B doubles the reaction rate. What is the overall order of the reaction?
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
The rate at which a substance reacts depends on its ..................
The rate at which a substance reacts depends on its ..................
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
For the reaction N2(g)+O2(g)⇌2NO(g), the value of Kc at 800∘C is 0.1 . When the equilibrium concentrations of both the reactants is 0.5‌mol, what is the value of KP at the same temperature?
For the reaction N2(g)+O2(g)⇌2NO(g), the value of Kc at 800∘C is 0.1 . When the equilibrium concentrations of both the reactants is 0.5‌mol, what is the value of KP at the same temperature?
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
The extent of adsorption of a gas on a solid depends on ...................
The extent of adsorption of a gas on a solid depends on ...................
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
An emulsifier is a substance which .................
An emulsifier is a substance which .................
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
Which of the following types of metals form the most efficient catalysts?
Which of the following types of metals form the most efficient catalysts?
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
The species among the following, which can act as an acid and a base is .................
The species among the following, which can act as an acid and a base is .................
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
A buffer solution has equal volumes of 0.2MNH4OH and 0.2MNH4Cl.pkb of the base is 5. The pH is ..................
A buffer solution has equal volumes of 0.2MNH4OH and 0.2MNH4Cl.pkb of the base is 5. The pH is ..................
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
The hydrogen electrode is dipped in a solution of pH‌3 at 25∘C. The potential would be (the value of 2.303‌RT∕F is 0.059V )
The hydrogen electrode is dipped in a solution of pH‌3 at 25∘C. The potential would be (the value of 2.303‌RT∕F is 0.059V )
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
20‌ml of 0.5N‌HCl and 35‌ml of 0.1N‌NaOH are mixed. The resulting solution will ...................
20‌ml of 0.5N‌HCl and 35‌ml of 0.1N‌NaOH are mixed. The resulting solution will ...................
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
Corrosion of iron is essentially an electrochemical phenomenon where the cell reaction are ...........
Corrosion of iron is essentially an electrochemical phenomenon where the cell reaction are ...........
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
The standard electrode potential is measured by ..................
The standard electrode potential is measured by ..................
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
A precipitate of AgCl is formed when equal volumes of the following are mixed. [KS. for AgCl=10−10]
A precipitate of AgCl is formed when equal volumes of the following are mixed. [KS. for AgCl=10−10]
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
Which one of the following defects in the crystals lowers its density?
Which one of the following defects in the crystals lowers its density?
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
A radioactive isotope has a half life of 10 days. If today 125‌mg is left over, what was its original weight 40 days earlier ?
A radioactive isotope has a half life of 10 days. If today 125‌mg is left over, what was its original weight 40 days earlier ?
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
Which of the particles cannot be accelerated?
Which of the particles cannot be accelerated?
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
In which of the following nuclear reactions neutron is emitted?
In which of the following nuclear reactions neutron is emitted?
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
Gold is extracted by hydrometallurgical process, based on its property ......................
Gold is extracted by hydrometallurgical process, based on its property ......................
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
In blast furnace, iron oxide is reduced by ...................
In blast furnace, iron oxide is reduced by ...................
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
Which of the following pairs of elements cannot form an alloy?
Which of the following pairs of elements cannot form an alloy?
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
Which compound is zero valent metal complex?
Which compound is zero valent metal complex?
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
Alum is a water purifier because it ..................
Alum is a water purifier because it ..................
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
A compound A has a molecular formula C2Cl3‌OH. It reduces Fehling's solution and on oxidation, gives a monocarboxylic acid B. A can be obtained by the action of chlorine on ethyl alcohol. A is ....................
A compound A has a molecular formula C2Cl3‌OH. It reduces Fehling's solution and on oxidation, gives a monocarboxylic acid B. A can be obtained by the action of chlorine on ethyl alcohol. A is ....................
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
Which of the following haloalkanes is most reactive?
Which of the following haloalkanes is most reactive?
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
The reaction in which phenol differs from alcohol is ..................
The reaction in which phenol differs from alcohol is ..................
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
An organic compound A containing C,H and O has a pleasant cdour with boiling point of 78∘C. On boiling A with conc. H2SO4, a colourless gas is produced which decolourises. bromine water and alkaline KMnO4. The organic liquid A is .....................
An organic compound A containing C,H and O has a pleasant cdour with boiling point of 78∘C. On boiling A with conc. H2SO4, a colourless gas is produced which decolourises. bromine water and alkaline KMnO4. The organic liquid A is .....................
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
Which of the following is an amphoteric acid?
Which of the following is an amphoteric acid?
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
Benzyl alcohol and sodium benzoate is obtained by the action of sodium hydroxide on benzaldehyde. This reaction is known as .......................
Benzyl alcohol and sodium benzoate is obtained by the action of sodium hydroxide on benzaldehyde. This reaction is known as .......................
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
Ethyl chloride on heating with AgCN, forms a compound ' X '. The functional isomer of ' X ' is -
Ethyl chloride on heating with AgCN, forms a compound ' X '. The functional isomer of ' X ' is -
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
A compound, containing only carbon, hydrogen and oxygen, has a molecular weight of 44 . On complete oxidation it is converted into a compound of molecular weight 60 . The original compound is .............
A compound, containing only carbon, hydrogen and oxygen, has a molecular weight of 44 . On complete oxidation it is converted into a compound of molecular weight 60 . The original compound is .............
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
Grignard reagent adds to .................
Grignard reagent adds to .................
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
Which of the following biomolecules contain a non-transition metal ion?
Which of the following biomolecules contain a non-transition metal ion?
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
Three dimensional molecules with cross links are formed in the case of a ...............
Three dimensional molecules with cross links are formed in the case of a ...............
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
Sucrose molecule is made up of ....................
Sucrose molecule is made up of ....................
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
Water insoluble component of starch is ....................
Water insoluble component of starch is ....................
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
An example for a saturated fatty acid, present in nature is ...................
An example for a saturated fatty acid, present in nature is ...................
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
A Nanopeptide contains ................... peptide linkages.
A Nanopeptide contains ................... peptide linkages.
Q.46 Correct
Q.46 In-correct
Q.46 Unattempt
An example of a sulphur containing amino acid is ...................
An example of a sulphur containing amino acid is ...................
Q.47 Correct
Q.47 In-correct
Q.47 Unattempt
Which of the following is not present in a nucleotide?
Which of the following is not present in a nucleotide?
Q.48 Correct
Q.48 In-correct
Q.48 Unattempt
Antiseptic chloroxylenol is ...................
Antiseptic chloroxylenol is ...................
Q.49 Correct
Q.49 In-correct
Q.49 Unattempt
An atom of an element A has three electrons in its outermost orbit and that of B has six electrons in its outermost orbit. The formula of the compound between these two will be ..................
An atom of an element A has three electrons in its outermost orbit and that of B has six electrons in its outermost orbit. The formula of the compound between these two will be ..................
Q.50 Correct
Q.50 In-correct
Q.50 Unattempt
Among Na+,Na,Mg and Mg2+, the largest particle is ...................
Among Na+,Na,Mg and Mg2+, the largest particle is ...................
Q.51 Correct
Q.51 In-correct
Q.51 Unattempt
Molarity of 0.2NH2SO4 is .................
Molarity of 0.2NH2SO4 is .................
Q.52 Correct
Q.52 In-correct
Q.52 Unattempt
In the equation of state of an ideal gas PV=nRT, the value of the universal gas constant would depend only on ...................
In the equation of state of an ideal gas PV=nRT, the value of the universal gas constant would depend only on ...................
Q.53 Correct
Q.53 In-correct
Q.53 Unattempt
A commercial sample of hydrogen peroxide is labelled as 10 volume. Its percentage strength is nearly ....................
A commercial sample of hydrogen peroxide is labelled as 10 volume. Its percentage strength is nearly ....................
Q.54 Correct
Q.54 In-correct
Q.54 Unattempt
Activated charcoal is used to remove colouring matter from pure substances. It works by ...................
Activated charcoal is used to remove colouring matter from pure substances. It works by ...................
Q.55 Correct
Q.55 In-correct
Q.55 Unattempt
When plants and animals decay, the organic nitrogen is converted into inorganic nitrogen. The inorganic nitrogen is in the form of ..................
When plants and animals decay, the organic nitrogen is converted into inorganic nitrogen. The inorganic nitrogen is in the form of ..................
Q.56 Correct
Q.56 In-correct
Q.56 Unattempt
A gas decolourised by KMnO4 solution but gives no precipitate with ammonical cuprous chloride is ..............
A gas decolourised by KMnO4 solution but gives no precipitate with ammonical cuprous chloride is ..............
Q.57 Correct
Q.57 In-correct
Q.57 Unattempt
Q.58 Correct
Q.58 In-correct
Q.58 Unattempt
Amongst the following, the compound that can most readily get sulphonated is?
Amongst the following, the compound that can most readily get sulphonated is?
Q.59 Correct
Q.59 In-correct
Q.59 Unattempt
Household gaseous fuel (LPG) mainly contains .................
Household gaseous fuel (LPG) mainly contains .................
Q.60 Correct
Q.60 In-correct
Q.60 Unattempt
Use of chlorofluoro carbons is not encouraged because ..................
Use of chlorofluoro carbons is not encouraged because ..................
Q.1 Correct
Q.1 In-correct
Q.1 Unattempt
Which of the following tissue originates exclusively from the ectoderm of the embryo?
Which of the following tissue originates exclusively from the ectoderm of the embryo?
Q.2 Correct
Q.2 In-correct
Q.2 Unattempt
The pyramid of energy is always upright for any ecosystem. This situation indicates the fact that .................
The pyramid of energy is always upright for any ecosystem. This situation indicates the fact that .................
Q.3 Correct
Q.3 In-correct
Q.3 Unattempt
Gynoecium in the members of family Leguminosae is composed of ...........................
Gynoecium in the members of family Leguminosae is composed of ...........................
Q.4 Correct
Q.4 In-correct
Q.4 Unattempt
Identify from the following, the compound that links glycolysis and Krebs cycle.
Identify from the following, the compound that links glycolysis and Krebs cycle.
Q.5 Correct
Q.5 In-correct
Q.5 Unattempt
Which part of the human brain controls the breathing movements?
Which part of the human brain controls the breathing movements?
Q.6 Correct
Q.6 In-correct
Q.6 Unattempt
When the chromosome number of a given organism has one additional chromosome in one of the homologous pairs, the condition is known as ...................
When the chromosome number of a given organism has one additional chromosome in one of the homologous pairs, the condition is known as ...................
Q.7 Correct
Q.7 In-correct
Q.7 Unattempt
If a germ cell in a female gonad and a germ cell in a male gonad begin undergoing meiosis simultaneously, what will be the ratio of ova and sperms produced?
If a germ cell in a female gonad and a germ cell in a male gonad begin undergoing meiosis simultaneously, what will be the ratio of ova and sperms produced?
Q.8 Correct
Q.8 In-correct
Q.8 Unattempt
Soil conservation is a practice in which ....................
Soil conservation is a practice in which ....................
Q.9 Correct
Q.9 In-correct
Q.9 Unattempt
The main function of lacteals in the villi of human small intestine is the absorption of .....................
The main function of lacteals in the villi of human small intestine is the absorption of .....................
Q.10 Correct
Q.10 In-correct
Q.10 Unattempt
A micro-organism, when viewed under a compound microscope with an objective lens of 40 X and an eye piece of 10X magnification measured 4000µ in length. The same microorganism when observed under a dissection microscope with a lens of 10X magnification, would measure .........
A micro-organism, when viewed under a compound microscope with an objective lens of 40 X and an eye piece of 10X magnification measured 4000µ in length. The same microorganism when observed under a dissection microscope with a lens of 10X magnification, would measure .........
Q.11 Correct
Q.11 In-correct
Q.11 Unattempt
Leaf fall occurs in a tree when there is an increase in the concentration of .......................
Leaf fall occurs in a tree when there is an increase in the concentration of .......................
Q.12 Correct
Q.12 In-correct
Q.12 Unattempt
Which of the following is a disease resistant, high yielding breed of poultry developed in Karnataka?
Which of the following is a disease resistant, high yielding breed of poultry developed in Karnataka?
Q.13 Correct
Q.13 In-correct
Q.13 Unattempt
Sertoli cells are nourishing cells in the testis. They also secrete a hormone. Identify the same.
Sertoli cells are nourishing cells in the testis. They also secrete a hormone. Identify the same.
Q.14 Correct
Q.14 In-correct
Q.14 Unattempt
Molecular biology is concerned with the study of .................
Molecular biology is concerned with the study of .................
Q.15 Correct
Q.15 In-correct
Q.15 Unattempt
The inner, darker and harder portion of secondary xylem that can not conduct water, in an older dicot stem, is called .................
The inner, darker and harder portion of secondary xylem that can not conduct water, in an older dicot stem, is called .................
Q.16 Correct
Q.16 In-correct
Q.16 Unattempt
The following figure shows the stomatal apparatus. Identify the parts labelled as A, B, C and D

Choose the correct answer from the following.
The following figure shows the stomatal apparatus. Identify the parts labelled as A, B, C and D

Choose the correct answer from the following.
Q.17 Correct
Q.17 In-correct
Q.17 Unattempt
In which of the following plants, there will be no transpiration?
In which of the following plants, there will be no transpiration?
Q.18 Correct
Q.18 In-correct
Q.18 Unattempt
Which of the following groups of algae do not have eukaryotic organization?
Which of the following groups of algae do not have eukaryotic organization?
Q.19 Correct
Q.19 In-correct
Q.19 Unattempt
Identify from the following, a hormone produced by the pituitary gland in both males and females but functional only in females.
Identify from the following, a hormone produced by the pituitary gland in both males and females but functional only in females.
Q.20 Correct
Q.20 In-correct
Q.20 Unattempt
Which one of the following is not a characteristic feature of bryophytes?
Which one of the following is not a characteristic feature of bryophytes?
Q.21 Correct
Q.21 In-correct
Q.21 Unattempt
Green house effect is the cumulative result of the influences of certain gases. Identify the gas, which is not involved in this influence.
Green house effect is the cumulative result of the influences of certain gases. Identify the gas, which is not involved in this influence.
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
Column I lists some principles, pertaining to physiology of plants. Column II lists the names of scientists who proposed the idea. Match the two columns. Identify the correct choice from those given

Column I lists some principles, pertaining to physiology of plants. Column II lists the names of scientists who proposed the idea. Match the two columns. Identify the correct choice from those given

Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
Which one of the following types of silk is being produced extensively in South India?
Which one of the following types of silk is being produced extensively in South India?
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
Identify from the following plant parts, the major contributors to human food.
Identify from the following plant parts, the major contributors to human food.
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
Alcohol is the most socially accepted narcotic drug. Excessive consumption of alcohol leads to ..............
Alcohol is the most socially accepted narcotic drug. Excessive consumption of alcohol leads to ..............
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
Haemophilia is a condition where there is ..................
Haemophilia is a condition where there is ..................
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
Read the statements A and B
A) The human small intestine is the longest portion in the alimentary canal
B) Absorption of digested food requires a very large surface area
Identify the correct choice on the two statements
Read the statements A and B
A) The human small intestine is the longest portion in the alimentary canal
B) Absorption of digested food requires a very large surface area
Identify the correct choice on the two statements
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
In the lac-operon model, lactose molecules function as
In the lac-operon model, lactose molecules function as
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
When a cell of diameter 2µ grows to double its diameter, what will happen to its surface area volume relationship?
When a cell of diameter 2µ grows to double its diameter, what will happen to its surface area volume relationship?
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
Which of the following is a genetically dominant trait in human beings?
Which of the following is a genetically dominant trait in human beings?
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
Identify from the following, a characteristic pigment associated with chlorophyll-b molecules.
Identify from the following, a characteristic pigment associated with chlorophyll-b molecules.
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
In which of the following regions of a nephron does maximum reabsorption of useful substances, takes place?
In which of the following regions of a nephron does maximum reabsorption of useful substances, takes place?
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
Which of the following statements is true with reference to cross pollination in angiosperms?
Which of the following statements is true with reference to cross pollination in angiosperms?
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt
Which of the following natural process is likely to hasten organic evolution?
Which of the following natural process is likely to hasten organic evolution?
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
A technology which has found immense use in solving cases of disputed parentage, is .................
A technology which has found immense use in solving cases of disputed parentage, is .................
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
Identify from the following, a plant tissue in which lignin does not occur in the cellwalls
Identify from the following, a plant tissue in which lignin does not occur in the cellwalls
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
Which of the following statement is not true with reference to mitochondria?
Which of the following statement is not true with reference to mitochondria?
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
Column I lists the parts of the human brain and column II lists the functions. Match the two columns and identify the correct choice from those given

Column I lists the parts of the human brain and column II lists the functions. Match the two columns and identify the correct choice from those given

Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
The site of EMP pathway of breakdown of glucose in a cell, is
The site of EMP pathway of breakdown of glucose in a cell, is
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
The following diagram indicates the reflex arc. Identify the parts labelled as A,B,C,D,E,F and G. Choose the correct option.
The following diagram indicates the reflex arc. Identify the parts labelled as A,B,C,D,E,F and G. Choose the correct option.
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
How many human teeth appear twice during the life span of an individual?
How many human teeth appear twice during the life span of an individual?
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
If the size of a fertilized egg of frog is compared with the size of its blastula and gastrula stages, which of the following observations will be correct?
If the size of a fertilized egg of frog is compared with the size of its blastula and gastrula stages, which of the following observations will be correct?
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
During protein synthesis AUG functions as the initiator codon in mRNA. What should be the anticodon on the tRNA molecule that picks up and brings the amino acid specified by this codon?
During protein synthesis AUG functions as the initiator codon in mRNA. What should be the anticodon on the tRNA molecule that picks up and brings the amino acid specified by this codon?
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
Choose the odd pair out in the following
Choose the odd pair out in the following
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
The macronutrient which is an essential component of all organic compounds, yet not obtained by plants from soil, is
The macronutrient which is an essential component of all organic compounds, yet not obtained by plants from soil, is
Q.46 Correct
Q.46 In-correct
Q.46 Unattempt
How many times a red blood corpuscle will have to pass through the heart in its journey from hepatic artery to the aorta?
How many times a red blood corpuscle will have to pass through the heart in its journey from hepatic artery to the aorta?
Q.47 Correct
Q.47 In-correct
Q.47 Unattempt
The law of limiting factors was proposed with particular reference to photosynthesis. Identify the scientist who proposed this law:
The law of limiting factors was proposed with particular reference to photosynthesis. Identify the scientist who proposed this law:
Q.48 Correct
Q.48 In-correct
Q.48 Unattempt
Osmoregulation in Paramecium is a function of ................
Osmoregulation in Paramecium is a function of ................
Q.49 Correct
Q.49 In-correct
Q.49 Unattempt
Identify from the following the branch of biology which provides direct evidences in favour of organic evolution.
Identify from the following the branch of biology which provides direct evidences in favour of organic evolution.
Q.50 Correct
Q.50 In-correct
Q.50 Unattempt
Which of the following groups of cells in the male gonad, represent haploid cells?
Which of the following groups of cells in the male gonad, represent haploid cells?
Q.51 Correct
Q.51 In-correct
Q.51 Unattempt
A nucleosome is a portion of the chromonema containing ..............
A nucleosome is a portion of the chromonema containing ..............
Q.52 Correct
Q.52 In-correct
Q.52 Unattempt
Maximum amount of oxygen is exchanged from the blood in the
Maximum amount of oxygen is exchanged from the blood in the
Q.53 Correct
Q.53 In-correct
Q.53 Unattempt
Which of the following term is used to describe the component isolated from a plant, for invitro culturing in the specific medium?
Which of the following term is used to describe the component isolated from a plant, for invitro culturing in the specific medium?
Q.54 Correct
Q.54 In-correct
Q.54 Unattempt
If a cell has twice as much DNA as in a normal functional cell, it means that the cell ................
If a cell has twice as much DNA as in a normal functional cell, it means that the cell ................
Q.55 Correct
Q.55 In-correct
Q.55 Unattempt
Apical dominance in plants is due to the presence of ..............
Apical dominance in plants is due to the presence of ..............
Q.56 Correct
Q.56 In-correct
Q.56 Unattempt
Which of the following structures are derivatives of the endoderm?
Which of the following structures are derivatives of the endoderm?
Q.57 Correct
Q.57 In-correct
Q.57 Unattempt
The sequence of nitrogen bases in a portion of a coding segment of DNA was AAT GCT TAG GCA. What will be the sequence of nitrogen bases in the corresponding region of the transcripted mRNA?
The sequence of nitrogen bases in a portion of a coding segment of DNA was AAT GCT TAG GCA. What will be the sequence of nitrogen bases in the corresponding region of the transcripted mRNA?
Q.58 Correct
Q.58 In-correct
Q.58 Unattempt
Which chamber of the human heart has the thickest muscular wall?
Which chamber of the human heart has the thickest muscular wall?
Q.59 Correct
Q.59 In-correct
Q.59 Unattempt
Entomology is concerned with the study of
Entomology is concerned with the study of
Q.60 Correct
Q.60 In-correct
Q.60 Unattempt
Which of the following is called as a detritivore?
Which of the following is called as a detritivore?
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