a 633 nm helium-neon laser puts out 2.00 w of power with a beam 6.20 mm in diameter. the beam is pointed directly at a pinhole which has a diameter of 1.10 mm. how many photons of light will travel through the pinhole per second? assume that the intensity of the light is equally distributed across the whole area of the beam. g

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02-11-2022
Physics

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a 633 nm helium-neon laser puts out 2.00 w of power with a beam 6.20 mm in diameter. the beam is pointed directly at a pinhole which has a diameter of 1.10 mm. how many photons of light will travel through the pinhole per second? assume that the intensity of the light is equally distributed across the whole area of the beam. g

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