When photons of energy hv fall on a photosensitive surface of work function E₀ , photoelectrons of maximum energy k are emitted. If the frequency of radiation is doubled the maximum kinetic energy will be equal to ( h = Planck's constant)

Step-by-step solution

In photoelectric effect, aligned Total energy & =K E of electrons + Work function h v & =k+w₀ w₀ & =h v-k aligned If frequency is doubled, let max. k E be k^ aligned h 2 v & =k^ +w₀ 2 h v & =k^ +(h v-k) k^ & =h v+k aligned