An observer can see through a pin-hole the top end of a thin 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 A. `5//2`B. `sqrt((5//2))`C. `sqrt((3//2))`D. `3//2`

An observer can see through a pin-hole the top end of a thin rod of he

1.	An observer can see through a pin-hole the top end of a thin 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 A. `5//2`B. `sqrt((5//2))`C. `sqrt((3//2))`D. `3//2`
Answer» Correct Answer - B

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