Work function of aluminium=4 2 eV If two protos each of energy 2 5eV are incident on its surface will - Physics - Dual Nature Of Radiation And Matter

Question

Work function of aluminium=4 2 eV If two protos each of energy 2
5eV are incident on its surface will emission of electrobs take
place

Laksh Jaisinghani · Answer

No,emission will not take place as :-
According to photon picture , one photon interacts with one
electron only But, work function of one electron > Energy of one
photon

Work function of aluminium=4.2 eV.If two protos each of energy 2.5eV are incident on its surface will emission of electrobs take place.