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A monochromatic beam of electromagnetic ...

A monochromatic beam of electromagnetic radiation has an intensity of `1W//m^2`. Then the average number of photons per `m^3` for a 10MeV `gamma` rays is

A

4166

B

3000

C

5000

D

2083

Text Solution

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The correct Answer is:
D
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RESONANCE-ATOMIC PHYSICS-Exercise
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