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Physics-

General

Easy

Question

Alightrayfallsonarectangularglassslabas shown. The index of refraction of the glass, iftotalinternalreflectionis to occur at theverticalface,is

$\sqrt{3 / 2}$
$\frac{(\sqrt{3} + 1)}{2}$
$\frac{(\sqrt{2} + 1)}{2}$
$\sqrt{5} / 2$

The correct answer is: $square root of 3 divided by 2 end root$

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