A triangular prism of glass is inside water. A ray, incident normally, – McqOptions

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1.	A triangular prism of glass is inside water. A ray, incident normally, on one of the faces, is totally reflected from face BC. Then the minimum refractive index of glass is -
A.	\[\frac{\sqrt{3}}{2}\]
B.	\[\frac{5}{3}\]
C.	\[\frac{2\sqrt{2}}{5}\]
D.	\[\frac{4\sqrt{2}}{3}\]
Answer» E.

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