List of top Physics Questions asked in KEAM

The binding energy per nucleon is maximum for the nucleus
The phenomenon of total internal reflection occurs when a ray of light travels from
The sensitivity of a moving coil galvanometer can be increased by
In an AC circuit containing only a capacitor, the current
The electromagnetic waves used in radar systems for aircraft navigation are
A dip needle vibrates in a vertical plane perpendicular to the magnetic meridian. The time period of vibration is
The core of a transformer is laminated to reduce
A wire of resistance R is stretched to double its length. Its new resistance will be
Potentiometer is an ideal instrument for measuring voltage because
The magnetic field at the centre of a circular current carrying coil of radius R is B. The magnetic field at a distance R from the centre on the axis of the coil is
The drift velocity of electrons in a conductor is of the order of
When two capacitors of capacities $C_{1}$ and $C_{2}$ are connected in parallel, the equivalent capacitance is
The electric potential at a point on the axis of an electric dipole at a distance r from its centre is proportional to
The ratio of the electric force to the gravitational force between an electron and a proton separated by a distance r is approximately
A particle executing simple harmonic motion (SHM) has a maximum velocity of $1~ms^{-1}$ and a maximum acceleration of $2\pi~ms^{-2}$. Its time period of vibration is
The frequency of a simple pendulum is f. If its length is increased by four times, its frequency will become
In a longitudinal wave, the distance between a compression and its adjacent rarefaction is
The average kinetic energy of a gas molecule is
The speed of sound in air is $340~ms^{-1}$. The frequency of the fundamental note emitted by a pipe of length 2 m closed at one end is
Two bodies A and B of masses 80 g and 120 g move with same speed, $6~cm~s^{-1}$ in a plane. The speed of the centre of mass of the system is
A satellite revolves around a planet in a circular orbit of radius R with the time period t. If the orbital radius is 3R, then its time period of revolution is
The change in the value of acceleration due to gravity (g) at a height h above the surface of the earth is same as that at a depth d below the surface. If both h and d are much smaller than the radius of the earth (R), then
The coefficient of linear expansion of a solid depends on
In an isothermal process, which of the following quantities remains constant?
The root mean square (rms) speed of the molecules of an ideal gas at a temperature T is proportional to