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Why photon mass is zero

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Why photon mass is zero

    • Posted by Vaibhav Arora 7 years, 11 months ago

    CBSE > Class 11 > Physics
    • 2 answers

    Prateek Chawla 7 years, 11 months ago

    Photon mass is zero because photon is a part of light , and light is a form of energy . as we know that mass and energy have a relation as follows :
    E=mc²
    as told by Albert Einstein . thus , energy has no mass but mass can be converted into energy .
    hence , photon has no mass

    1Thank You

    Ishika Garg 7 years, 11 months ago

    Light is composed of photons, so we could ask if the photon has mass. The answer is then definitely "no": the photon is a massless particle. According to theory it has energy and momentum but no mass, and this is confirmed by experiment to within strict limits.

    1Thank You

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