Question Answers

Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 2 > Chapter 11 - Photoelectric Effect > Photoelectric emission is observed from a surface for frequencies v1 and v2 of the incident radiation (v1>v2). If the maximum kinetic energies of the photoelectrons in two cases are in ratio 1 : K then the threshold frequency of the metallic surface is

Photoelectric emission is observed from a surface for frequencies v1 and v2 of the incident radiation (v1>v2). If the maximum kinetic energies of the photoelectrons in two cases are in ratio 1 : K then the threshold frequency of the metallic surface is

Let `(nr) and (nb) be respectively the number of photons emitted by a red bulb and a blue blub of equal power in a given time.