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∘
Find the value of the angle of emergence from the prism. Refractive index of the glass is √3. NEET 2021 Physics, Ray Optics — question figure
NEET UG 2021 — Physics Optics
2021mcqeasy
Find the value of the angle of emergence from the prism. Refractive index of the glass is 3.
Official previous-year question
Held on 30 Apr 2021 · Verified 9 Jul 2026.
Options
- A
45∘
- B
30∘
- C
60∘
- D
90∘
Did you get this right?
Sign in to track your attempts and accuracy.
Your note
Sign in to keep a private note on this question. Nothing you write is ever public.
NEET UG Optics in other years
More NEET UG Optics questions
Two thin lenses of focal lengths f₁ = +20 cm and f₂ = -10 cm are in contact. The power of the combination is:
2026easy
The refractive index of glass is 1.5. The speed of light in glass is:
2026easy
In a certain camera, a combination of four similar thin convex lenses are arranged axially in contact. Then the power of the combination and the total magnification in comparison to the power $(p)$ and magnification $(m)$ for each lens will be, respectively
2025medium
A microscope has an objective of focal length 2 cm , eyepiece of focal length 4 cm and the tube length of 40 cm . If the distance of distinct vision of eye is 25 cm , the magnification in the microscope is :
2025medium
The intensity of transmitted light when a polaroid sheet, placed between two crossed polaroids at $22.5^{\circ}$ from the polarization axis of one of the polaroid, is ( $\mathrm{I}_0$ is the intensity of polarised light after passing through the first polaroid):
2025medium
Other Physics topics for NEET UG
Keep practicing Optics
Work through every NEET UG Optics PYQ, year by year.