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A point source of light is submerged 2.90 m below the surface of a lake and...

A point source of light is submerged 2.90 m below the surface of a lake and emits rays in all directions. On the surface of the lake, directly above the source, the area illuminated is a circle. What is the maximum radius that this circle could have?

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Answer #1

The complete calculation of the maximum radius is given as below:-

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