A Point Source of Light Is Positioned $20.0 \mathrm {~m}$ Below the Surface of a Lake

question 127

Short Answer

A point source of light is positioned $20.0 \mathrm {~m}$ below the surface of a lake. What is the diameter of the largest circle on the surface of the water through which light can emerge into the air? The index of refraction of water is $1.33 .$

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