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What is the momentum of photon of energy 3 MeV in Kg m/s ? |
1.6 x 10-21 Kg m/s 3.2 x 10-21 Kg m/s 1.6 x 10-25 Kg m/s 3.2 x 10-25 Kg m/s |
1.6 x 10-21 Kg m/s |
Use : p = E/c $ p = \frac{3\times 1.6\times 10^{-13}}{3\times 10^8}= 1.6\times 10^{-21} Kg-m/s$ |
