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 = hν/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: (b). A: E = hν, true. B: a photon travels at c in free space, true. C: p = E/c = hν/c, true. D: energy and momentum are conserved in photon-electron collisions (Compton effect), true. E: a photon is uncharged, false. So the answer is (b) A, B, C and D only.

If c is the velocity of light in free space, the correct statements… | NEET 2024

Q11NEET 2024Easy

Photons: Energy, Momentum & Radiation Pressure

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 $E = h\nu$ .

B. The velocity of a photon is $c$ .

C. The momentum of a photon, $p = \frac{h\nu}{c}$ .

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:

Show answer and solution

Answer: (b)

A: $E = h\nu$ , true. B: a photon travels at $c$ in free space, true.
C: $p = \frac{E}{c} = \frac{h\nu}{c}$ , true. D: energy and momentum are conserved in photon-electron collisions (Compton effect), true.
E: a photon is uncharged, false.
So the answer is (b) A, B, C and D only.

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