Question

The rest mass of photan is
​

Answer 1

Answer:

According to electromagnetic theory, the rest mass of photon in free space is zero and also photon has non-zero rest mass, as well as wavelength-dependent. The very recent experiment revealed its non-zero value as 10 - 54 kg ( 5.610 × 10 - 25 MeV c - 2 ) .

Hope it helps you ...

Answer 2

Answer:

zero

Explanation:

The photons are said to be chargeless and massless particles that travel at the speed of light. So the rest mass of a photon is taken to be zero. This can be proved from Einstein's special theory of relativity. Hence the photons have a rest mass of zero.

please mark me brainlist