
No refraction at face AC.
Apply Snell's law at face BC,
we get,
μ1sini=μ2sinr
3sin30∘=1×sin(e)
23=sin(e)
⇒e=60∘
NEET UG 2021 — Physics Optics
Find the value of the angle of emergence from the prism. Refractive index of the glass is 3.

Held on 30 Apr 2021 · Verified 9 Jul 2026.
45∘
30∘
60∘
90∘
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