Question

according to photon theory of light which of the following physical quantities associated with a photon do not or does not changes as it collides with an electron in vacuum

a)speed and Momentum
b) speed only
c) energy and Momentum
d) energy only

Answer 1

hey mate ur answer

in vacuum when photon collides with electron both energy and momentum remains conserved. so (c) part is correct!!

hope it helps!!!!!