Question

The equation E = pc is valid
(A) for all sub-atomic particles
(B) is valid for an electron but not for a
photon
(C) is valid for a photon but not for an
electron
(D) is valid for both an electron and a
photon​

Answer 1

Answer:

The equation E = pc is valid for a particle with zero rest mass. The rest mass of a photon is zero, but the rest mass of an electron is not zero. So, the equation will be valid for photon, and not electron