Question

Photoelectric effect is the phenomenon in which:
A) Photons come out of metal when it is hit by a beam of electrons
B) Photons come out of the nucleus of an atom under the action of an electric field
C) electrons come out of metal with a constant velocity which depends on the
frequency and intensity of incident light wave
D) Electrons come out of a metal with different velocities not greater than a certain​

Answer 1

Answer:

Explanation:

C

Answer 2

Answer:

(D)

Explanation:

for a light of fixed frequency, maximum KE or/ hence maximum velocity can be calculated by Einstein eqn -

max. KE = (h × f) - (work function)