CUET (UG) entrance exam Question Bank Solutions for Physics

The wavelength of matter is independent of

The moment of a photon is given by

A constant retarding force of50 N is applied to a body of mass 20 kg moving initially with a speed of 15 ms^-1. How long does the body take to stop?

In the circuit shown in the figure, the potential barrier for Ge diode is 0.3 V and for Si diode it is 0.7 V. What is the voltage V_A?

Two simple pendula of length L and 4L are pulled aside to the right and are at rest so that they make an angle 30° with the vertical. They are then released simultaneously at time t = 0. The time after which they will be in phase is ______.

If the length of a simple pendulum increases by 5%, then its period shall increase by ______.

A vessel contains oil (density 0.8 g/cm³) over mercury (density 13.6 g/cm³). A sphere of homogeneous composition floats with half its volume immersed in mercury and the other half in oil. The density of the material of the sphere in g/cm³ is ______.

70 cal of heat is required to raise the temperature of 2 moles of an ideal gas at constant pressure from 30°C to 35°C. The amount of heat required to raise the temperature of the gas through the same range at constant volume will be (assume R = 2 cal/mol-K).

A nucleus _yY^x emits one α and two β particles. The resulting nucleus is ______.

The twinkling effect of star light is due to ______.

Two cars of mass m₁ and m₂ are moving in circles of radii r₁ and r₂, respectively. Their speeds are such that they make complete circles at the same time t. The ratio of their centripetal acceleration is:

In a capillary tube, the water rises by 1.2 mm. The height of water that will rise in another capillary tube having half the radius of the first is:

The force required to double the length of a steel wire of area 1 cm², if it's Young's modulus Y = `2 xx 10^11/m^2` is:

Electronic motors operating at low voltages tend to burn out because

A particle is projected such that the horizontal range and vertical height are equal. Then the angle of projection is :

The force between two small charged spheres having charges of 1 × 10⁻⁷ C and 2 × 10⁻⁷ C placed 20 cm apart in the air is:

A solenoid of length 0.6 m has a radius of 2 cm and is made up of 600 turns If it carries a current of 4 A, then the magnitude of the magnetic field inside the solenoid is:

A long solenoid having 200 turns per cm carries a current of 1.5 amp. At the centre of it is placed a coil of 100 turns of cross-sectional area 3.14 × 10⁻⁴ m² having its axis parallel to the field produced by the solenoid. When the direction of current in the solenoid is reversed within 0.05 sec, the induced e.m.f. in the coil is:

For high frequency, capacity offers

Which one of the following deflect in electric field