1)According to wave theory, when a wavefront strikes a metal surface, the free electrons at the surface absorb the radiant energy continuously.
2)Also, greater is the intensity, greater are the amplitudes and energies of the wave.
3)Hence, higher intensity waves should liberate photoelectrons with greater kinetic energies.
4)A light wave of ample intensity ought to be able to eject electrons, no matter could also be the frequency and every electron intercepts Associate in Nursing insignificantly some quantity of energy and so ought to need finite time to flee from the metal surface.
5)In line with physical phenomenon result, most mechanical energy of emitted icon electrons is freelance of the intensity of incident radiation, High energy (higher frequency) radiations of terribly low intensity will emit icon electrons, whereas higher intensity however low energy (below threshold energy) can’t scientific theory fails to elucidate the existence of threshold energy. Also, the emission of icon electrons is a fast method.