CUET (UG) entrance exam Question Bank Solutions for Physics

1°C rise in temperature is observed in a conductor by passing a certain current. If the current is double then the rise in temperature is approximately.

Four point masses, each of value m, are placed at the comers of a square ABCD of side L, the moment of inertia of this system about an axis through A and parallel to BD is ______.

The resistance of ideal voltmeter is

The magnetic moment of atomic neon is equal to

When a current is passed through a tangent galvanometer, it gives a deflection of 30° for 60° correction, the current must be

At a certain 100 p of reduces 0.0/57 m carrier a current of 2 amp. The magnetic field at the centre of the coop is [`mu_0 = 4pi xx 10^-7` wb/amp – m]

When current is double deflection is also doubled in

A magnetic needle suspended freely orients itself:-

A particle having charge 100 times that of an electron is revolving in a circular path by radius 0.8 with one rotation per second. The magnetic field produced at the centre is

The horizontal component of earth’s magnetic field at a place is `sqrt3` times the vertical component. The angle of dip at that place is ______.

A body moves from point A to B under the action of a force, varying in magnitude as shown in the figure. Force is expressed in newton and displacement in meter. What is the total work done?

Three point charges +2, +2, and +5µC are placed respectively at the vertices A, B, C of an equilateral triangle of side 0.2 m. The magnitude of the force experienced by the charge at C is ______.

If the change in value of g at height h above the surface of the earth is the same as at a depth d below the surface of the earth, when both d and h are much smaller than the radius of the Earth, then which one of the following is true?

A satellite S is moving in an elliptical orbit around the earth. The mass of the satellite is very small compared to the mass of the earth. Then,

Two point charges placed in a medium of dielectric constant 5 are at a distance r between them, experience an electrostatic force 'F'. The electrostatic force between them in vacuum at the same distance r will be-

A 10-meter wire is kept in east-west direction. It is falling down with a speed of 5.0 meter/second, perpendicular to the horizontal component of earth's magnetic field of 0.30 × 10⁻⁴ weber/meter². The momentary potential difference induced between the ends of the wire will be:

If stretch in a spring of force constant k is tripled then the ratio of elastic potential energy in the two cases will be:

A work of 100 joule is performed in carrying a charge of 5 coulomb form infinity to a particular. point in an' electrostatic field. The potential of this point is:-

Potential energy of two equal negative point charges 2µc each held lm apart in air is:-

In bringing one electron towards another electrons, the electrostatic potential energy of the system will.