Dual Nature Of Light Question 399

Question: A metal surface is illuminated by a light of given intensity and frequency to cause photoemission. If the intensity of illumination is reduced to one-fourth of its original value, then the maximum KE, of emitted photoelectrons will become

Options:

A) (1/16)th of original value

B) unchanged

C) twice the original value

D) four times the original value

Show Answer

Answer:

Correct Answer: B

Solution:

[b] Maximum KE depends on the frequency of incident radiation, not on intensity.