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Home
Dual Nature of Radiation and Matter Test - 94
Dual Nature of Radiation and Matter Test - 94
Result
Dual Nature of Radiation and Matter Test - 94
/
Score
-
Rank
Time Taken:
-
Question
1/10
4 / -1
Penetrating power of X-rays can be increased by
Correct
Wrong
Skipped
A
Increasing the potential difference between anode and cathode
Correct
Wrong
Skipped
B
Decreasing the potential difference between anode and cathode
Correct
Wrong
Skipped
C
Increasing the cathode filament current
Correct
Wrong
Skipped
D
Decreasing the cathode filament current
Question
2/10
4 / -1
K
α
characteristic X-ray refers to the transition
Correct
Wrong
Skipped
A
n = 2 to n = 1
Correct
Wrong
Skipped
B
n = 3 to n = 2
Correct
Wrong
Skipped
C
n = 3 to n = 1
Correct
Wrong
Skipped
D
n = 4 to n = 2
Question
3/10
4 / -1
The wavelength of X-rays is
Correct
Wrong
Skipped
A
2000 Å
Correct
Wrong
Skipped
B
2 Å
Correct
Wrong
Skipped
C
1 mm
Correct
Wrong
Skipped
D
1 cm
Question
4/10
4 / -1
For the structural analysis of crystals, X-rays are used because
Correct
Wrong
Skipped
A
X-rays have wavelength of the order of interatomic spacing
Correct
Wrong
Skipped
B
X-rays are highly penetrating radiations
Correct
Wrong
Skipped
C
Wavelength of X-rays is of the order of nuclear size
Correct
Wrong
Skipped
D
X-rays are coherent radiations
Question
5/10
4 / -1
The essential distinction between X-rays and γ-rays is that
Correct
Wrong
Skipped
A
γ-rays have smaller wavelength than X-rays
Correct
Wrong
Skipped
B
γ-rays emanate from nucleus while X-rays emanate from outer part of the atom
Correct
Wrong
Skipped
C
γ-rays have greater ionizing power than X-rays
Correct
Wrong
Skipped
D
γ-rays are more penetrating than X-rays
Question
6/10
4 / -1
The wavelength of X-rays decreases, when
Correct
Wrong
Skipped
A
Temperature of target is increased
Correct
Wrong
Skipped
B
Intensity of electron beam is increased
Correct
Wrong
Skipped
C
K.E. of electrons striking the target is increased
Correct
Wrong
Skipped
D
K.E. of electrons striking the target is decreased
Solutions
Question
7/10
4 / -1
What determines the hardness of the X-rays obtained from the Coolige tube ?
Correct
Wrong
Skipped
A
Current in the filament
Correct
Wrong
Skipped
B
Pressure of air in the tube
Correct
Wrong
Skipped
C
Nature of target
Correct
Wrong
Skipped
D
Potential difference between cathode and target
Question
8/10
4 / -1
The most penetrating radiation out of the following is
Correct
Wrong
Skipped
A
X-rays
Correct
Wrong
Skipped
B
β-rays
Correct
Wrong
Skipped
C
α-particles
Correct
Wrong
Skipped
D
γ-rays
Question
9/10
4 / -1
On increasing the number of electrons striking the anode of an X-rays tube, which one of the following parameters of the resulting X-rays would increase?
Correct
Wrong
Skipped
A
Penetration power
Correct
Wrong
Skipped
B
Frequency
Correct
Wrong
Skipped
C
Wavelength
Correct
Wrong
Skipped
D
Intensity
Question
10/10
4 / -1
Hard X-rays for the study of fractures in bones should have a minimum wavelength of 10
–11
m. The accelerating voltage for electrons in X-ray machineshould be
Correct
Wrong
Skipped
A
< 124.2 kV
Correct
Wrong
Skipped
B
> 124.2 kV
Correct
Wrong
Skipped
C
Between 60 kV and 70 kV
Correct
Wrong
Skipped
D
= 100 kV
Solutions
Re-attempt
-
Correct (
-
)
Wrong (
-
)
Skipped (
-
)
1
2
3
4
5
6
7
8
9
10
Re-attempt
-
Correct (
-
)
Wrong (
-
)
Skipped (
-
)
1
2
3
4
5
6
7
8
9
10
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