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Question

The momentum of a photon in an X-ray beam of 1010 metre wavelength is 



Your Answer
A

1.5×1023kgm/sec

Correct Answer
B

6.6×1024kgm/sec

Your Answer
C

6.6×1044kgm/sec

Your Answer
D

2.2×1052kgm/sec


Solution

The correct option is B

6.6×1024kgm/sec


Momentum of photon
p=hλ=6.6×10341010=6.6×1024kgm/sec.

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