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The output of a laser has pulse duration of 20 ms and average output power of 1.75 W per pulse. How much energy is released per pulse if wavelength is 5890 Å?

The output of a laser has pulse duration of 20 ms and average output power of 1.75 W per pulse. How much energy is released per pulse if wavelength is 5890 Å? Correct Answer 0.035 J

As we know, Energy = Power X Time = 1.75 W X 20 X 10-3 s = 0.035 J.

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