^Kinetic energy of the photoelectrons

^Kinetic energy of the photoelectrons

The kinetic energy of the photoelectrons varies from 0 to K_max. Maximum KE of photoelectrons is independent of intensity of incident light but depends upon energy or frequency of incident light. It is given by Einstein’s photoelectric equation

K_max = h(f _inci. – f_th) = eV_s

Stopping potential versus incident frequency