Dual Nature Of Light Question 306

Question: Photons of energy 6 eV are incident on a metal surface whose work function is 4 eV. The minimum kinetic energy of the emitted photo-electrons will be [MP PET 2001]

Options:

A) 0 eV

B) 1 eV

C) 2 eV

D) 10 eV

Show Answer

Answer:

Correct Answer: A

Solution:

Minimum kinetic energy is always zero.