Question

5. Photoelectric emission is observed from a surface
when lights of frequency n, and n, incident. If
the ratio of maximum kinetic energy in two cases
is K: 1 then (Assumen, > n,) threshold frequency
is​

Answer 1

Explanation:

Photoelectric emission is observed from a metallic surface for frequencies v1andv2 of the incident light. If the maximum value of kinetic energies of the photoelectrons emitted in the two cases are in the ratio n:1 then the threshold frequency of the metallic surface is.