Question Answers

Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 2 > Chapter 11 - Photoelectric Effect > The threshold frequency for a certain metal is v0 when light of frequency 2v0 is incident on it . The maximum velocity of photoelectrons is 4×10^6 m/s . If the frequency of incident radiation is increase to 5v0 is incident on it, the maximum velocity of photo electrons will be .

The threshold frequency for a certain metal is v0 when light of frequency 2v0 is incident on it . The maximum velocity of photoelectrons is 4×10^6 m/s . If the frequency of incident radiation is increase to 5v0 is incident on it, the maximum velocity of photo electrons will be .

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.