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Pacasumjalaliahgo
Answered

What is the energy of light (massless particle) whose momentum is the same as that of a proton whose kinetic energy is 10 MeV?​

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Answer:

A proton masses 1.673*10^(-27) kg

10 MeV = 1.602*10^(-12) J

This implies 0.14485 c or 43,424.9km/sec. 44x galaxy escape speed!

This implies a momentum of 7.342*10^(-20) kg m/sec.

Now for a photon E = pc

So

This means that its a 137 MeV photon - which is a wavelength of 9*10^(-15) meters!

88x the momentum of an electron moving at 95% light speed.

55,000x the momentum of X-ray radiation.

Explanation:

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