The ratio of the power of a light source 
to that the light source 
is 
is emitting 
photons per second at 600 nm.If the wavelength of the source 
is 300 nm, then the number of photons per second emitted by 
is 
.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(5) Since power emitting by a source is given as
Substituting the given values
Photon 
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