Q. A photon in motion has a mass equal to
A) $c/hv$
B) $h/\lambda$
C) $hv$
D) $hv/c^{2}$
Explanation
(d) $E = hv = mc^{2}$ or $m = hv/c^{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.