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A:Photon do not have mass then also it possess momentum. R:Momentum of photon is due to energy and energy is equivalent to mass. |
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Answer» Both assertion and reason are true and the reason is CORRECT explanation of the assertion. According toEinstein THEORY mass and energy are proportional to each other. `Eprop m` `THEREFORE E=mc^(2)` Where c=speed of lighy in VACCUM but E=hf `therefore hf=mc^(2)` `therefore m=(hf)/(c^(2))` `therefore mc=(hf)/(c )` `therefore p=(hf)/(c )[because mc =p]` |
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