Question

# The work function of a metal is $6eV$ . If two photons each having energy $4eV$ strike with the metal surface(i). Will the emission be possible?(ii). Why?

(i). For the photoelectron to be ejected out, the energy of the photons hitting the surface of the metal should be equal or more than the work function. So in this case the photoelectron will not be ejected out of the surface of the metal even when two photons of energy $4eV$ hit the surface of the metal.