If an object starts moving at the speed of light, the mass will become infinite. So why is the photon mass zero?
Hasan MahmudExpert
If an object starts moving at the speed of light, the mass will become infinite. So why is the photon mass zero?
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Photons can travel at the speed of light because they have no mass, photons have momentum.
Something with mass cannot travel at the speed of light, as you said.