Maximum kinetic energy of photoelectrons depends on the nature of the emitter and the frequency of incident radiation.

The two factors affecting maximum kinetic energy of photoelectrons are the frequency of the incident radiation and the material on the surface.

(a) The kinetic energy of any single emitted electron increases linearly with frequency above some threshold value and is independent of the light intensity. The number of electrons ejected therefore depends upon the number of photons, i.e. the intensity of the light.

Answer. Threshold frequency is the minimum frequency of incident light which can cause emission of photo-electrons from the metal surface. Photo-emission of electrons is not possible below threshold frequency. Threshold frequency of particular surface depends on nature of its material.

Thus the kinetic energy of photoelectrons depends on the frequency of incident light and is independent light. Hence there is no effect of intensity of light on the kinetic energy of emitted photoelectrons.

The maximum kinetic energy of photoelectrons is directly proportional to of the incident radiation.

Hi, The answer to your question is NO. Technically if we use Einstein’s equation, then all photoelectrons should be emitted with same kinetic energy.

Answer. This is because some electron looses there energy due to collision whereas some make most efficient use of energy without colliding and come out.

The answer is that each emitted electron has absorbed one photon, increasing the intensity just increases the number of photons (we expect more electrons but we don’t expect their maximum kinetic energy to change). The electrons absorb the energy from the photons, and are ejected from the metal surface.