Dual Nature Of Light Question 277

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 volts is [IIT JEE 1997 Re-Exam]

Options:

A) 2

B) 4

C) 6

D) 10

Show Answer

Answer:

Correct Answer: B

Solution:

$ {K_{\max }}=( ,|V_{s}|, ),eV $
$ \Rightarrow ,|V_{s}|,=,4V $