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

The excess of pressure inside the first soap bubble is three times that inside the second bubble. The ratio of volume of the first to second bubble is ______.

The acceleration of a point on the rim of a flywheel 1 m in diameter, if it makes 1200 rpm is ______.

A fully charged capacitor C with initial charge q₀​ is connected to a coil of self-inductance L at t = 0. The time at which the energy is stored equally between the electric and magnetic fields is ______.

A wheel is Subjected to uniform angular acceleration about its axis. Initially. its angular velocity is zero. In the first 2 s, it rotates through an angle θ₁, in the next 2 s, it rotates through an angle θ₂. The ratio of `theta_2/theta_1` is ______.

The electric charges are distributed in a small volume. The flux of the electric field through a spherical surface of radius 10 cm surrounding the total charge is 20 V-m. The flux over a concentric sphere of radius 20 cm will be ______.

A body of mass m is moving in circle of radius r with a constant speed v. The work done by the centripetal force in moving the body over half the circumference of the circle is ______.

Excess of pressure inside a soap bubble is ______.

The kinetic energy K of a particle moving along a circle of radius R depends on the distance covered s as K = as², where a is a constant. The force acting on the particle is ______.

If numerical aperture of a microscope is increased, then its ______.

An electron(e) is revolving in a circular orbit of radius r in the hydrogen atom. The angular momentum of the electron is (M = magnetic dipole moment associated with it and m = mass of electron)

A light wave of wavelength λ is incident on a slit of width d. The resulting diffraction pattern is observed on a screen at a distance D. If linear width of the principal maxima is equal to the width of the slit, then the distance D is

There are four convex lenses L₁, L₂, L₃ and L₄ of focal length 2, 4, 6 and 8 cm, respectively. Two of these lenses from a telescope of length 10 cm and magnifying power 4. The objective and eye lenses are respectively

At absolute zero temperature, pure silicon behaves as ______.

When the observer moves towards the stationary source with velocity, 'V₁', the apparent frequency of the emitted note is 'F₁'. When the observer moves away from the source with velocity 'V₁', the apparent frequency is 'F₂'. If 'V' is the velocity of sound in air and `"F"_1/"F"_2 = 4` then `"V"/"V"_1 = ?`

If two tuning forks A and B are sounded together, they produce 4 beats per second. When A is slightly loaded with wax, they produce 2 beats when sounded again. The frequency of A is 256 Hz. The frequency of B will be ______

A stone of mass 1 kg is rotated in a horizontal circle of radius 0.5 m. If it makes `100/pi` rps, then its angular momentum is ______

In Van de Graaff generator potential difference is produced which is in the order of ______

A charged particle (charge = q: mass = m) is rotating in a circle of radius 'R' with uniform speed 'v'. The ratio of its magnetic moment (M) to the angular momentum (L) is ______

A tuning fork 'A' produces 5 beats per second with a tuning fork of frequency 480 Hz. When a little wax is stuck to a prong of fork A, the number of beats heard per second becomes 2. What is the frequency of tuning fork A before the wax is stuck to it?

Van de Graaff generator produces ______.