Dual Nature Of Light Question 289

Question: A photocell stops emission if it is maintained at 2V negative potential. The energy of most energetic photoelectron is [JIPMER 1999]

Options:

A) 2eV

B) 2J

C) 2kJ

D) 2keV

Show Answer

Answer:

Correct Answer: A

Solution:

$ {K_{\max }}=(,|V_{0}|,),eV=2eV. $