Photoelectric emission is observed for a metallic surface

Last updated: 5/28/2023

Photoelectric emission is observed for a metallic surface for frequency f and f If maximum kinetic energy of electrons in these two cases are in ratio of 1 n then threshold frequency for metallic surface is given by nf f 1 n 1 2 nf f n 1 3 n f f n 1 nf 4 f nf