Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Dual Nature of Radiation and Matter

Question:

Einstein's Photoelectric Equation is :

Kmax = hv - Φ

where v is the frequency of the incident radiation and Kmax is the maximum possible kinetic energy of photoelectron. The work function Φ is given as :

Φ = hv. In terms of stopping potential, Kmax = eV0.

What is the charge on a photon?
Options:
positive
negative
same as neutron
cannot say
Correct Answer:
same as neutron
Explanation:
A photon is electrically neutral.