Physics, 07.11.2021 14:00, kleighlamb4901

A certain laser outputs pure red light (photon energy 1.8 eV) with power 550 milliwatts (0.55 watts). How many photons per second does this laser emit

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A certain laser outputs pure red light (photon energy 1.8 eV) with power 550 milliwatts (0.55 watts)...