The light intensity incident on a metallic surface produces photoelectrons with a maximum kinetic energy of 2 eV.The light intensity is doubled.Determine the maximum kinetic energy of the photoelectrons (in eV).
A)4
B)2
D)3
E)16

Question

The light intensity incident on a metallic surface produces photoelectrons with a maximum kinetic energy of 2 eV.The light intensity is doubled.Determine the maximum kinetic energy of the photoelectrons (in eV).
A)4 
B)2 
D)3 
E)16

Quizplus · Accepted Answer

The maximum kinetic energy of photoelectrons is proportional to the frequency of incident light, not its intensity. Therefore, the maximum kinetic energy of photoelectrons will remain the same and be 2 eV even if the light intensity is doubled.

The Light Intensity Incident on a Metallic Surface Produces Photoelectrons