The?photoelectric effect?or photoemission is the production of electrons or other free carriers when light is shone onto a material. Electrons emitted in this manner can be called photoelectrons.

The energy of a photon corresponding to the visible light of maximum wavelength is approximately 3.2 eV

In order to increase the kinetic energy of ejected photoelectrons, there should be an increase in frequency of radiation

The?de Broglie wavelength?is the?wavelength, ?, associated with a massive particle and is related to its momentum, p, through the Planck constant, h: ? = h p .