Physics, 13.07.2019 22:20, eev01

The intensity of sunlight at the earth's surface is 9es w/m2. assuming a wavelength of 579 nm, how many photons pass through the eye of a neede in one second? assume the needle eye is circular, with a radius of 0.596 mm, and that the plane of the circle is perpendicular to the light rays

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The intensity of sunlight at the earth's surface is 9es w/m2. assuming a wavelength of 579 nm, how m...