MAH-MHT CET (PCM/PCB) entrance exam Question Bank Solutions for Physics

A transverse wave is described by the equation, y = Y₀ sin 2π(ft - `"x"/lambda`). The maximum particle velocity is equal to four times the wave velocity if ______

A thermodynamic system goes from states (i) P, V to 2P, V  (ii) P, V to P, 2V. The work done in the two cases is ______.

An AC circuit contains resistance of 12Q and inductive reactance 5Q. The phase angle between current and potential difference will be ______.

Two identical wires of substances 'P' and 'Q ' are subjected to equal stretching force along the length. If the elongation of 'Q' is more than that of 'P', then ______.

The resultant amplitude of two waves y₁ = a sin (ωt + π/6) and y₂ = a cos ωt will be ______

Mechanical force per unit area of a charged conductor is ______

The displacement of a particle from its mean position (in metre) is given by, y = 0.2 sin(10 πt + 1.5π) cos(10 πt + 1.5π).

The motion of particle is ____________.

In a certain region of space with volume 0.2 m³ , the electric potential is found to be 5V throughout. The magnitude of electric field in this region is: ____________.

An ideal gas is compressed at a constant temperature. Its internal energy will ____________.

In U.C.M., when time interval δt → 0, the angle between change in velocity (δv) and linear velocity (v) will be ______.

A wheel of M.I. 50 kg m² starts rotating on applying a constant torque of 200 Nm. Its angular velocity after 2.5 second from the start is ______.

In a thermodynamic system, working substance is ideal gas. Its internal energy is in the form of ______.

8 m³ of a gas is heated at the pressure 10⁵ N/m² until its volume increases by 10%. Then, the external work done by the gas is ____________.

A cycle wheel of radius 0.6 m is rotated with constant angular velocity of 15 rad/s in a region of magnetic field of 0.2 T which is perpendicular to the plane of the wheel. The e.m.f generated between its center and the rim is, ____________.

When 1 g of water at 0° C and 1 x 10⁵ N/m² pressure is converted into ice of volume 1.082 cm³, the external work done will be ____________.

A particle is moving along a circular path of radius 6 m with a uniform speed of 8 m/s. The average acceleration when the particle completes one-half of the revolution is ______.

A conducting square loop of side l and resistance R moves in its plane with a uniform velocity v perpendicular to one of its side. A magnetic induction B constant in time and space, pointing perpendicular and into the plane of the loop exists everywhere. The current induced in the loop is ______.

A body performing a simple harmonic motion has potential energy 'P₁' at displacement 'x₁' Its potential energy is 'P₂' at displacement 'x₂'. The potential energy 'P' at displacement (x₁ + x₂) is ________.

The relation between time and displacement for two particles is given by Y₁ = 0.06 sin 27`pi` (0.04t + `phi_1`), y2 = 0.03sin 27`pi`(0.04t +  `phi_2`). The ratio of the intensity of the waves produced by the vibrations of the two particles will be ______.

Two samples A and B, of a gas at the same initial temperature and pressure are compressed from volume V to V/2; A isothermally and B adiabatically. The final pressure of A will be ______.