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Energy output is in the visible range

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Reference no: EM131977187

Assuming that 10.0% of a 100 W light bulb's energy output is in the visible range (typical for incandescent bulbs) with an average wavelength of 580 nm, and that the photons spread out uniformly and are not absorbed by the atmosphere, how far away (in km) would you be if 502 photonsper second enter the 2.90 mm diameter pupil of your eye? (This number easily stimulates the retina.)

Reference no: EM131977187

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