By increasing the intensity of incident light keeping frequency (v v0) fixed on the surface of metala)kinetic energy of the photoelectrons increasesb)number of emitted electrons increasesc)kinetic energy and number of electrons increasesd)no effectCorrect answer is option 'B'. Can you explain this answer?

Question

By increasing the intensity of incident light keeping frequency (v > v0) fixed on the surface of metala)kinetic energy of the photoelectrons increasesb)number of emitted electrons increasesc)kinetic energy and number of electrons increasesd)no effectCorrect answer is option 'B'. Can you explain this answer?

Answer

The number of photoelectrons emitted per second from a photosensitive plate is directly proportional to the intensity of the incident radiation. ... For the same frequency of light and increased intensity, the saturation current is found to increase, but the cut-off potential is found to remain constant.
The number of electrons also changes because of the probability that each photon results in an emitted electron are a function of photon energy. If the intensity of the incident radiation of a given frequency is increased, there is no effect on the kinetic energy of each photo electron.

Answer

Because frequency is same then enargy of photon is also same so it can't effect on kinetic energy but  no of photon is directaly. perportionl to light intancity then  finaly no. of electron increase

Answer

The increase in intensity of incident light while keeping the frequency constant would result in an increase in the amplitude of the light wave. This would cause the light wave to have a greater maximum displacement from its equilibrium position, resulting in a brighter light. The frequency of the light wave, however, would remain the same, meaning the number of complete oscillations per unit of time would not change.

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