List of top Physics Questions

On an average, the number of neutrons and the energy of a neutron released per fission of a uranium atom are respectively

Find velocity of em wave in terms of C if $\epsilon_r$ = 4 and $\mu_r$ = 1.

In an AC circuit, R = 2$\pi^2\Omega$, L = 0.02$\pi$H and is powered by an AC voltage of frequency 50 Hz. Find impedance of the circuit ?

Pressure of liquid inside a vessel depends on?

Water is flowing through a tube of radius r at constant velocity with power P. What happens to power when radius of the tube doubled?

Light of wavelength 500 nm falls on a single slit of width 0.1 mm. Angular position of 1st minimum is

A particle executes SHM with time period T. If acceleration is doubled keeping amplitudes constant, new time period is

Electric flux through a closed surface depends on

Angular velocity of geostationary satellite is (in rad hr$^{-1}$).

Find the ratio of moment of inertia of ring to disc, about an axis passing through its centre?

Find new resistivity when radius doubles and length reduces by half of its original resistivity is $\rho$.

Capacitance of an air filled parallel plate capacitor is C. Find capacitance when a dielectric of dielectric constant K is field in it.

If a conductor of length 1 m carrying a current of 2 A is placed in a field of 0.2 T. What will be the force acting on it?

In v-t graph, if graph cuts time axis what does it indicate?

Stopping potential is given by 1.8 eV, then what will be the maximum kinetic energy of photoelectrons?

2A of current is flowing through a wire of length 1 m. What is the amount of charge passing through it in 1 min?

A nucleus has a mass number of 56 and a binding energy per nucleon of 8.8 MeV, the total B.E is?

When a ball of mass 2.2 kg collides with a wall with a speed of 10 m/s and rebounds with a speed of 8 m/s. Find impulse.

A particle is subjected to a force F = 3x$^2$. Calculate the work done in moving with particle from x=0 to x = 2 m.

For pure semiconductor

The position of a particle is given by x = at + bt$^{3/2$ where a and b are constants and t is the time. Then dimension of $\frac{b}{a}$ is?}

If m and 2m are two masses separated by a distance of 1 m are attracted by gravitational force. Then the acceleration of their centre of mass is?

When an iron ball is moving through a fluid, its terminal velocity is proportional to

If a magnet is cut into equal halves perpendicularly. What happens to magnetic moment?

In vertical circular motion, what is the minimum velocity at the lowest point?