Question

If c is the velocity of light in free space, the correct statements about photon among the following are:
A. The energy of a photon is E = hν.
B. The velocity of a photon is c.
C. The momentum of a photon, $p=\frac{hv}{c}$.
D. In a photon-electron collision, both total energy and total momentum are conserved.
E. Photon possesses positive charge.
Choose the correct answer from the options given below:

• A. A and B only
• B. A, B, C and D only
• C. A, C and D only
• D. A, B, D and E only

Answer 1

Answer: (B)

A, B, C and D only

Answer 2

Photons are chargeless (eliminating E) and follow E = hν and $p =\frac{hν}{c}$ , with energy and momentum conserved in collisions.