List of top Physics Questions asked in JEE Main, KCET

At what height over the earth's pole, the free fall acceleration decreases by $1%$. (Assume the radius of earth to be $6400 km$)

The dimensional formul $ML^2T^{-2}$ represents

The system of units followed in science is

The unit of electrical power is

ampere hour is a unit of

A thermos flask contains hot coffee. The flask is vigorously shaken. Then the temperature of the coffee will

A ring shaped metal is allowed to expand by heating it. The hole will

A hole is drilled along the earth's diameter and a stone is dropped into it. When the stone is at the centre of earth, it has

SI unit of magnetic field is

An object is dropped from rest, its velocity V changes in the following forms

Absolute zero of temperature is

The potential difference applied to an X-ray tube is increased. As a result, in the emitted radiation

A truck is moving from rest with constant power P. if the displacement of the truck is proportional to t", where t is time, find n.

The ratio of radius of gyration of uniform hollow sphere and uniform solid sphere about its diameter is _______ (both have the same radius)

Shortest wavelength in Lyman series has wavelength of 915 À. Longest wavelength of Balmer series has a value of ?

Find the current I in the given circuit

A proton moving with one tenth of velocity of light has a certain de Broglie wavelength of $\lambda$ An alpha particle having certain kinetic energy has the same de-Brogle wavelength $\lambda$ The ratio of kinetic energy of proton and that of alpha particle is:

In a pond of water, a flame is held 2 m above the surface of water. A fish is at depth of 4 m from water surface. Refractive index of water is $\frac{4}{3}$. The apparent height of the flame from the eyes of fish is:

Two particles $A$ and $B$ of equal masses are suspended from two massless springs of spring constants $k_1$ and $k_2$ respectively. If the maximum velocities, during oscillations, are equal, the ratio of amplitudes of $A$ and $B$ is:

A block of mass M slides down on a rough inclined plane with constant velocity. The angle made by the inclined plane with horizontal is θ.The magnitude of the contact force will be

The equivalent energy of 1 gm mass is equal to:

In the pulley-block system shown, the pulley and the block are ideal. If the acceleration of the block is g/8, find m1:m2 (Given m2 > m1)

Kirchhoff's first rule of any junction of several circuit element in an electric circuit is based on the law of conservation of:

The angle of polarization of glass is 58° and that for water is 53°. The angle of polarization for glass in water is

The track shown in the figure is frictionless. The block B of mass 4 kg is lying at rest and block A of mass 2 kg is pushed along the track with some speed. The collision between A and B is perfectly elastic.With what velocity should the block A start such that block B just reaches at point P?