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when photon are rest its mass is zero how?
Photon equations are different from the Newton-like ones: there is no force term to accelerate a photon, etc. Its energy is calculated differently: hv. So speaking of photon mass is senseless. [ What we need to know is how photons are created and how they exchange the energy-momentum with matter. The theory of that does not contain any mass belonging to photon. Moreover, the relativistic relationship between the photon energy and momentum is valid only for m=0. source: › Physics › Special & General Relativity ]
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Asked 3/29/2012 8:42:32 AM
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