Physics, 22.08.2020 01:01 jimennacastillo15

A ruby laser delivers a 16.0-ns pulse of 4.20-MW average power. If the photons have a wavelength of 694.3 nm, how many are contained in the pulse

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A ruby laser delivers a 16.0-ns pulse of 4.20-MW average power. If the photons have a wavelength of...