Asked by carl
does light have mass?
Answers
Answered by
drwls
No. It could not travel at the speed of light if it had mass.
It does have energy, however.
You cannot use E = h*(frequency) = mc^2 to get the energy of a (light) photon. The E = mc^2 formula of Einstein only applies to mass at rest.
It does have energy, however.
You cannot use E = h*(frequency) = mc^2 to get the energy of a (light) photon. The E = mc^2 formula of Einstein only applies to mass at rest.
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