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Problem
Light is incident normally on the short face of a
30
∘
−
60
∘
−
90
∘
30^\circ - 60^\circ - 90^\circ
3
0
∘
−
6
0
∘
−
9
0
∘
prism. A liquid is poured on the hypotenuse of the prism. If the refractive index of the prism is
3
\sqrt{3}
3
, find the maximum refractive index of the liquid so that light is totally reflected.
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