CUET (UG) entrance exam Question Bank Solutions for Physics

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:

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Which one of the following deflect in electric field

The valance electrons in alkali metal is a:-

The mass number of a nucleus is equal to the number of:-

How many code combination are there in a 8 bit byte?

What is medication index of an FM wave?

Gas exerts pressure on the walls of the container because :

A litre of an ideal gas at 27°C is heated at constant pressure to 297°C. The approximate final volume of the gas is?

A particle is dropped from a height H. The de Broglie wavelength of the particle as a function of height is proportional to

Two bodies A and B having masses in the ratio of 3 : 1 possess the same kinetic energy. The ratio of linear momentum of B to A is:

A solid sphere is in a rolling motion. In rolling motion, a body possesses translational kinetic energy (k_t) as well as rotational kinetic energy (k_r) simultaneously. The ratio k_t : k_r for the sphere is:

If the kinetic energy of the particle is increased to 16 times its previous value, the percentage change in the de-Broglie wavelength of the particle is:

Two bodies have their moments of inertia I and 2I respectively about their axis of rotation. If their kinetic energies of rotation are equal, their angular momenta will be in the ratio:

When the displacement of a particle executing simple harmonic motion is half of its amplitude, the ratio of its kinetic energy to potential energy is:

An amplitude modulated wave is represented by the expression v_m = 5(1 + 0.6 cos 6280 t) sin(211 × 10⁴ t) volts. The minimum and maximum amplitudes of the amplitude modulated wave are, respectively:

A running man has half the kinetic energy of that of a boy of half of his mass. The man speeds up by 1 m/s so as to have the same K.E. as that of the boy. The original speed of the man will be:

For an electron accelerated from rest through a potential V, the de Broglie wavelength associated will be:

In AM waves, the amplitude of each side band frequency is ______.

The de- Broglie wave length of an electron moving with a speed of 6.6 × 10⁵ m/s is approximately