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Questions  

The momentum of photon of energy  1 MeV will approximately be

a
10-22 kg-m/s
b
5 x 10-22 kg-m/s
c
3 x 10-6 kg-m/s
d
0

detailed solution

Correct option is B

momentum=Ec=106×1.6×10−193×108                      =0.5×10−21                      =5×10−22kgms−1

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