Questions

The momentum of the photon of wavelength 5000 A will be

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1.3×10−27kg−m/sec

1.3×10−28kg−m/sec

4×1029kg−m/sec

4×10−18kg−m/sec

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detailed solution

Correct option is A

p=hλ=6.6×10−345000×10−10=1.3×10−27kg−m/s

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