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Required information
The radius of the Moon is 1.737 Mm and the distance between Earth
and the Moon is 384.5 Mm.
The intensity of the moonlight incident on her eye is 0.0220 W/m². What is the intensity
incident on her retina if the
diameter of her pupil is 6.53 mm and the diameter of her eye is 1.99 cm?
W/m²

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