Question

When a ray of light emerges out of a glass slab, then:

पर्याय

• ∠i = ∠e

• ∠i > ∠e

• ∠i < ∠e

• none of these

Answer 1

∠i = ∠e

Explanation:

The opposite faces of a glass slab are parallel, so the emergent ray is parallel to the incident ray. Hence, the angle of emergence equals the angle of incidence.