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Two laser beams one of wave length 640 nm and the other 400 nm have same unit flux of photons. Their powers are in the ratio

Two laser beams one of wave length 640 nm and the other 400 nm have same unit flux of photons. Their powers are in the ratio

Grade:12

1 Answers

Mayajyothi C J
126 Points
5 years ago
P \alpha \frac{1}{\lambda ^{2}}
 
\frac{P_{1}}{P_{2}} =\frac{(\lambda _{2})^{2}}{(\lambda_{1})^{2}}
=\frac{400^{2}}{650^{2}}
=\frac{64}{169}
 

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