Science
A ray of light is incident as shown. If A, B and C are three different transparent media, then which among the following options is true for the given diagram?
- ∠ 1 > ∠ 4
- ∠ 1 < ∠ 2
- ∠ 3 = ∠ 2
- ∠ 3 > ∠ 4
Refraction Plane Surfaces
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Answer
∠ 3 = ∠ 2
Reason — As the two normals are parallel to each other, so ∠ 2 = ∠ 3 as they form a pair of alternate angles. Hence, ∠ 3 = ∠ 2 is true for the given diagram.
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