Consider Sun is producing power 
in the form of monochromatic radiations of wavelength 
, and the distance between Sun and Earth is 
earth radius). Calculate the number of photon per cubic meter just above the earth surface
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Photons per second, 
Number of photons per second per unit area.
Number of photons per cubic meter 
,
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