A point source of light is 842 cm below the surface of a
A point source of light is 84.2 cm below the surface of a body of water. Find the diameter of the circle at the surface through which light emerges from the water. Water has an index of refraction of 1.33.
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a point source of light is 842 cm below the surface of a body of water find the diameter of the circle at the surface
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