What is the maximum height of the pin

Reference no: EM13342361

A child makes a "raft" by inserting a pin perpendicularly into the flat surface of a cork with diameter D. The cork is set afloat in a bathtub, with the pin on the underside. What is the maximum height h of the pin if its tip is completely hidden from view when observed from above the surface of the water, at any angle? Express you answer in terms of D and the index of refraction for water, nw. Assume that the pin is much longer than the part of the cork submerged in water.

Reference no: EM13342361

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