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Sahay Sir > Question Answers > MTG NEET Physics > Part 2 > Chapter 9 - Ray Optics > An observer can see through a pin-hole the top end of a thin 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

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

An observer can see through a pin-hole the top end of a thin of height h he can see the lower end of the rod. Then the refractive index of the liquid is 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