Answer to Question #279302 in Atomic and Nuclear Physics for BIGIRIMANA Elie

Atomic and Nuclear Physics

Question #279302

How many photons per second are emitted by a 7.50𝑚𝑊 𝐶𝑂2 laser that has a wavelength of 10.6𝜇𝑚?

Expert's answer

"P=\\dot nh\\frac c{\\lambda},"

"\\dot n=\\frac{P\\lambda}{hc}=4\\cdot 10^{15}~s^{-1}."

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