Q: (i) In the explanation of photoelectric effect, we assume one photon of frequency ν collides with an electron and transfers its energy. This leads to the equation for the maximum energy Emax of the emitted electron as
Emax = h ν – φ0 ; where φ0 is the work function of the metal. If an electron absorbs 2 photons (each of frequency ν ). What will be the maximum energy for the emitted electron ?
(ii) Why is this fact (two photon absorption) not taken into consideration in our discussion of the stopping potential ?