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Question

The momentum of a photon is 3.3×1029kgm/s. Its frequency will be

A
3×103Hz
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B
6×103Hz
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C
7.5×1012Hz
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D
1.5×1013kg/s
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Solution

The correct option is D 1.5×1013kg/s
We know that,
P=hvC
Now substituting the values
P=6.6×1034×1.5×10133×108
P=3.3×1029kg_m/sec
Thus, momentum =3.3×1029kg/s

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