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For an equilateral prism, it is observed that when a ray strikes grazingly at one face it emerges grazingly at the other. Its refractive index will be
Option: 1
$\frac{\sqrt{3}}{2}$

Option: 2
$\frac{2}{\sqrt{3}}$

Option: 3
$2$

Option: 4
Data not sufficient

Answers (1)

best_answer

From the diagram,

$\mu=\frac{\sin 90^{\circ}}{\sin 30^{\circ}}=2$

Posted by

manish painkra

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