Energy (hv), carried by a photon of frequency v, is absorbed (by the electrons on the surface.) to :
(a) overcome the work function of metal (ϕ0)
(b) Impart maximum kinetic energy to the emitted electron (Kmax)
Three salient-features (Any three) :
(i) The cut-off potential of the emitted electrons is proportional to v.
(ii) The maximum kinetic energy is independent of the intensity of incident radiations.
(iii) photoelectric emission of electrons is possible only when,
(iv) The emission of electrons is instantaneous.
