Question

2.
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 is h. When the 3
beaker is filled with a liquid up to height 2h, he can
see the lower end of the rod. Find the refractive index
of the liquid.​

Answer 1

Explanation:

Answer in Attachment.

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