Ray Optics · Refraction
As shown in the diagram, when the incident ray is parallel to base of the prism, the emergent ray grazes along the second surface.
If refractive index of the material of prism is , the angle of prism is.

- (1)
- (2)
- (3)
- (4)
Video solution coming soon
We're animating every PYQ step by step. Subscribe to get them first.
See the full 21 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…
- 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…
- 22 Jan 2026, Shift 1 · Q23A parallel beam of light travelling in air (refractive index 1.0) is incident on a convex spherical glass surface of radius of curvature…
