A lamp is installed at the bottom of a pool filled with water. The pool has...

A lamp is installed at the bottom of a pool filled with water. The pool has depth d. The lamp produces light rays in all directions, but light only escapes from the top surface of the water within a circular region which has diameter D.
(a) Explain why this effect occurs?
(b) If the depth of the pool is 50 cm. Find the diameter D.

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genius_generous answered 1 year ago

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