Dual Nature Of Light Question 405

Question: The maximum kinetic energy of photoelectrons emitted from a surface when photons of energy 6 eV fall on it is 4 eV. The stopping potential, in volt, is

Options:

A) 2

B) 4

C) 6

D) 10

Show Answer

Answer:

Correct Answer: B

Solution:

[b] Stopping potential is the negative potential applied to stop the electrons having maximum kinetic energy. Therefore, stopping potential will be 4 volt.