A hemispherical vessel is completely filled with a liquid of refractive index μ. A small coin is kept at the l…

Question

A hemispherical vessel is completely filled with a liquid of refractive index $\mu$ . A small coin is kept at the lowest point $O$ of the vessel as shown in the figure. The minimum value of the refractive index of the liquid so that a person can see the coin from point $E$ (at the level of the vessel) is:

A hemispherical vessel filled with liquid, with coin at the lowest point O, diameter AB at the top, center C on the diameter, point B at right rim, and observer point E on the horizontal extension of AB.

A
$\sqrt{2}$
B
$\frac{\sqrt{3}}{2}$
C
$\sqrt{3}$
D
$\frac{3}{2}$

Accepted Answer

A. $$\sqrt{2}$$

Answer

B. $$\frac{\sqrt{3}}{2}$$

Answer

C. $$\sqrt{3}$$

Answer

D. $$\frac{3}{2}$$

Answer & step-by-step solution

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