A narrow beam of light is incident on a rectangular glass slab (refractive index 1.5)…
PHYSICS · Single correct · CBSE · Physics · Light — Reflection and Refraction · Light — Reflection and Refraction
Problem
A narrow beam of light is incident on a rectangular glass slab (refractive index 1.5) placed in air. After emerging from the opposite face into air, the emergent ray will
(a) will bend closer to the normal than the incident ray
(b) will emerge along the same straight line as the incident ray (without any lateral displacement)
(c) will travel parallel to the incident ray
(d) will retrace its path through the slab