3 ms·
Light does not have relativistic mass, but it does carry energy. The full version of Einstein's famous equation is E^2 = m^2c^4 + p^2c^2; a photon has m=0, so
by evanb 7y ago
Light does not have relativistic mass, but it does carry energy. The full version of Einstein's famous equation is E^2 = m^2c^4 + p^2c^2; a photon has m=0, so E=pc.