CUET (UG) entrance exam Question Bank Solutions for Physics

While measuring the length of the rod by vernier callipers, the reading on the main scale is 6.4 cm and the eight divisions on vernier is in line with marking on the main scale division. If the least count of callipers is 0.01 and zero error - 0.04 cm, the length of the rod is ______.

In a certain region of space, the electric field is zero. From this fact, what can you conclude about the electric potential in this region?

The orbital speed of an electron orbiting around a nucleus in a circular orbit of radius 50 pm is 2.2 × 10⁶ ms⁻¹. Then the magnetic dipole moment of an electron is:

The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 × 10^-15m is 

Two cell of 1.25 V and 0.75 V are connected parallel. The effective voltage will be:-

The e.m.f of The battery in a thermocouple is doubled. The rate of heat generated at one of the junction will.

Blue colour of sky is due to the phenomenon of

Which particle is most likely to be captured by a ²³⁵u nucleus and cause it to undergo fission? 

The force acting on a particle in one dimension is F = ax - 2xβ³. The corresponding potential energy V(x), assuming V(0) = 0 is given by ______.

A slab of stone of area 0.36 m² and thickness 0.1 m is exposed on the lower surface to steam at 100°C. A block of ice at 0°C rests on the upper surface of the slab. In one hour 4.8 kg of ice is melted. The thermal conductivity of the slab is:
(Given latent heat of fusion of ice = 3.36 × 10⁵ J kg⁻¹)

A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 10 V. The potential at a distance of 2 cm from the centre of the sphere is ______.

A positive charge q is distributed over a circular ring of radius a. It is placed in a horizontal plane and is rotated about its axis at a uniform angular speed ω. A horizontal magnetic field B exists in the space. The torque acting on the ring due to the magnetic force is ______.

AB is a wire of potentiometer with the increase in value of resistance R, the shift in the balance point J will be:

A proton and an α-particle enter a uniform magnetic field perpendicularly with the same speed. If the proton takes 25 µ seconds to make 5 revolutions, then the time period for the α-particle would be:

Three resistance each of 4Ω are connected to from a triangle. The resistance b / w two terminal is

The conductivity of super - conductor is

The value of current I in the network shown in fig.

A wire of resistance R is cut into two equal part. There parts are then connected in parallel. The equivalent resistance of the combination will be

What is the current I in the circuit as show in fig.

Specific resistance of a conductor increase with.