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- Q
- As you know that the rest mass of photon is zero. Also any particle having rest mass equal to zero can attain the velocity of light. According to Einstein mass of particle increase with increase in velocity. Since when photon strikes anything it behaves as particle. Why then its mass is not infinite at that time as its velocity is equal to the velocity of light?
- Name
- Bital Ahmed Shah, 7th E & C
- Age
- Not Available
- Institution
- NIT
- City
- Srinagar
- A
- Though physicists say that photons are massless, it is possible to assign a "relativistic mass" to a photon which depends upon its wavelength. This ?relativistic mass? can not be infinite. Due to finite wavelength the mass of the photon is finite even at the velocity of light.
...A.P.J.Abdul Kalam