PhysicsJEE Main 28 Jan 2026, Shift 2·Q18·MCQ·Moderate

Ray Optics · Refraction

For a transparent prism, if the angle of minimum deviation is equal to its refracting angle, the refractive index

n

of the prism satisfies.

(1) $\sqrt2 < n < 2\sqrt2$
(2) $1 < n < 2$
(3) $n \ge 2$
(4) $\sqrt2 < n < 2$

Video solution coming soon

We're animating every PYQ step by step. Subscribe to get them first.

See the full 28 Jan 2026, Shift 2 paper

More on Refraction

21 Jan 2026, Shift 1 · Q21A collimated beam of light of diameter 2 mm is propagating along x-axis. The beam is required to be expanded in a collimated beam of…
21 Jan 2026, Shift 2 · Q20As shown in the diagram, when the incident ray is parallel to base of the prism, the emergent ray grazes along the second surface.…
22 Jan 2026, Shift 1 · Q14A thin convex lens of focal length 5 cm and a thin concave lens of focal length 4 cm are combined together (without any gap) and this…
22 Jan 2026, Shift 1 · Q15Consider an equilateral prism (refractive index 2). A ray of light is incident on its one surface at a certain angle i. If the emergent…