Physics, 25.07.2019 02:30 mathiscool7

Ahelium-neon laser emits light of wavelength 632.8 nm and has a power output of 16 mw. how many photons are emitted per second by this laser?

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Ahelium-neon laser emits light of wavelength 632.8 nm and has a power output of 16 mw. how many phot...