What is the angle of incidence of a ray if the reflected ray is at an angle of 90° to the incident ray?
Reflection of Light
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Question

What is the angle of incidence of a ray if the reflected ray is at an angle of 90° to the incident ray?

KnowledgeBoat · Accepted Answer

Given, ∠i + ∠r = 90° where ∠i = angle of incident. ∠r = angle of reflection According to the law of reflection, ∠i = ∠r Substituting the above law in the given condition we get, 2∠i = 90° ∠i = = 45° Therefore, angle of incidence = 45°.

Science

What is the angle of incidence of a ray if the reflected ray is at an angle of 90° to the incident ray?

Reflection of Light

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