Question

no mass is possibly for any object having speed of light
Then how photons mass exists?
Is speed of photon less than the speed of the light? ​

Answer 1

Answer:

yes the speed of proton is less than speed of light

Answer 2

Answer:

Explanation: photons are the particles that carry light . But light is in the form of Waves. Its Wave length is between 400 to 700 nanometer (nm) therefore it requires a medium to carry itself and that's why photons exist