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

Harshit Singh , 4 Years ago
Grade 12th pass
anser 1 Answers
Pawan Prajapati

Last Activity: 4 Years ago

Here, the angle of reflection is 90°. As we know, according to the laws of reflection that angle of incidence is equal to angle of reflection. Here, the angle between the incident ray and reflected ray is 90°. i.e., ∠i + ∠r = 90° Since, ∠i = ∠r We can write, ∠i + ∠i = 90° ⇒ 2∠i = 90° ⇒ ∠i = 45° Angle of incidence = 45°.

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