Question

An observer can see through a pin?hole the top end of a tn rod of height h, placed as shown in the figure. The beaker height is 3h and its radius h. When the beaker is filled with a liquid up to a height 2h, he can see the lower end of the rod. Then the refractive index of the liquid is [IIT-JEE (Screening) 2002]
A) 5/2 B) \sqrt{(5/2)} C) \sqrt{(3/2)} D) 3/2

Answer 1

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