12 The potential difference that must be applied to stop the

Last updated: 5/31/2023

12 The potential difference that must be applied to stop the fastest photo electrons emitted by a nickel surface having work function 5 01 eV when ultraviolet light of 200 nm falls on it must be 1 2 V 2 2 4 V 3 1 2 V 4 2 4V