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A pulse-laser emits light with a wavelength of 800 nm . A single pulse has a power of 20 mW(milliwatts) and lasts for 10

Posted: Mon May 16, 2022 8:10 pm
by answerhappygod
A pulse-laser emits light with a wavelength of
800 nm . A single pulse has a power of
20 mW(milliwatts) and lasts for 10.0 ns(nanoseconds). How
many photons are emitted during each pulse?