The exit surface of a prism with refractive index n is coated wit… | JEE Main 2026 Physics PYQ

MCQEasyJEE Main 2026 · 24 January, Shift 1Prisms & Total Internal Reflection

The exit surface of a prism with refractive index $n$ is coated with a material having refractive index $\dfrac{n}{2}$ . When this prism is set for minimum angle of deviation, it exactly meets the condition of critical angle. The prism angle is _____.

A
$30^\circ$
B
$60^\circ$
C
$15^\circ$
D
$45^\circ$

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