Question Detail

PHY 104 PHY 104 Past Questions Objective Question

Question

Which of the following statements is true about a photon?
Options
A A photon has zero mass and zero momentum.
B photon has finite mass and a finite value of momentum.
C photon has zero mass but finite value of momentum
Correct Answer
D A photon has finite mass but zero momentum.
Correct Answer

Option C is the correct answer.

Detailed Explanation

A photon has zero rest mass but carries energy and momentum. Its momentum is given by p = E/c = h/λ.

Hint

Photon momentum is p = h/λ.

Question Info