Concept:The photocurrent depends on the rate of emission of photoelectrons from the metal surface.
Explanation:When light of sufficient frequency falls on a metal surface, photoelectrons are ejected.
The photocurrent is the current produced by these ejected electrons.
Increasing the frequency of the incident photons does not increase the number of emitted electrons; it only increases their kinetic energy.
However, increasing the intensity of the incident light means more photons strike the surface per unit time.
This causes more electrons to be emitted per second, thereby increasing the photocurrent.
Hence, the photocurrent remains unchanged with frequency but is directly proportional to the intensity of incident light.
Answer:Option C: does not depend on the frequency of photon but depends only on the intensity of incident light.