EAPCET - Physics Mock Tests

A ball of mass 0.2 kg moving at 10 m/s collides head-on with a stationary ball of mass 0.3 kg. If the collision is perfectly elastic, the velocity of the 0.2 kg ball after collision is:

A nuclear reaction converts 1 kg of mass completely into energy. The energy released is: (c = 3 × 10⁸ m/s)

A thin conducting spherical shell of radius R has a charge Q uniformly distributed on its surface. The electric field at a distance r from the centre (r > R) is directed:

A uniform chain of length L and mass M lies on a smooth horizontal table with a fraction 1/n of its length hanging over the edge. The chain starts sliding from rest. The velocity of the chain when it just leaves the table is:

A simple pendulum has a time period of 2 s on Earth. If it is taken to a height equal to the Earth's radius above the surface, its time period becomes approximately: (g ∝ 1/r²)

The power of a lens with focal length 0.5 m is:

Kirchhoff's loop rule (voltage rule) is based on the principle of conservation of:

A bar magnet has a magnetic dipole moment M. It is cut into two equal halves perpendicular to its axis. The magnetic dipole moment of each half is: