In a parallel C-R network with a voltage source, the current flowing through the resistor is ____current and that flowing through the capacitor is _____current.

Consider Q and W represented as the amount of heat given to an ideal gas and the work done by it in an adiabatic process.

I. Q = 0

II. W = 0

III. Q = W

IV. Q ≠ W

Select the correct option –

A bend in a level road has a radius of 100 m. find the maximum speed which a car turning this bend may have without skidding if the coefficient of friction between the tyres and the road is 0.8?

A van moving at 40 km/hr is to be stopped by applying brakes in the next 4 m. If the van weighs 2000 kg, what is the average force to be applied to stop it?

A system goes from A to B via two processes I and II, as shown in the figure. If ΔU₁ and ΔU₂ are the changes in the internal energies in the processes I and II, respectively, then

In X-rays diffraction experiments distance between atomic lattice planes of diffraction grating 2.8 × 10^-10 m then the maximum wavelength of X-rays (in meter) is:

Two particles A and B have a phase difference of π when a sine wave passes through the region.

(I) A oscillates at half the frequency of B

(II) A and B move in opposite directions.

(III) A and B must be separated by half of the wavelength.

(IV) The displacements at A and B have equal magnitudes

Select the correct option –

If a convex lens having focal length 20cm and a concave mirror, having their principal axes along the same lines, are kept 80 cm apart from each other and the concave mirror is to the right of the convex lens. When an object is kept at a distance of 30 cm to the left of the convex lens, its image remains at the same position even if the concave mirror is removed. What will be the maximum distance of the object for which this concave mirror, by itself, would produce a virtual image?

An ideal gas is pumped into a rigid container having diathermic walls so that the temperature remains constant. In a certain time interval, the pressure in the container is doubled. What happens to the internal energy of the contents of the container?

Which quantities do not depend on the choice of zero potential or zero potential energy?

I. The potential at a point

II. The potential difference between two points

III. The potential energy of a two-charge system

IV. Change in potential energy of a two-charge system

Mark the correct option –