In a rectangular glass slab, a light ray is incident obliquely on the interface. i, r, and e are the angles of incidence, refraction, and emergence, respectively. Select the correct statement.
A
∠i is more than ∠r but nearly equal to ∠e.
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B
∠i is less than ∠r but nearly equal to ∠e.
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C
∠i is more than ∠e but nearly equal to ∠r.
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D
∠i is less than ∠e but nearly equal to ∠r.
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Solution
The correct option is A ∠i is more than ∠r but nearly equal to ∠e.
From rarer to denser medium, light bends towards the normal i.e.∠i > ∠r
Light incidents obliquely on a glass slab ⇒ Incident and Emergent rays are parallel i.e., ∠i = ∠e