Einstein’s explanation for photoelectric effect.
Energy of a striking photon= Binding energy + K.E. of ejected electron.
hv = x + ½ mv2
hv = hv0 + ½ mv2
K.E. ( ½ mv2) = h (v-v0)
hv = energy of a photon
hv0= x = threshold energy
v0 = Threshold frequency.
K.E. = ½ mv2
