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Question
A light ray is incident normally on a plane mirror. What is the direction of reflected ray? Show it on a diagram.
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Solution
From the law of reflection, angle of incidence is equal to the angle of reflection, i.e., ∠i=∠r.
In this case, ∠i=0. Following laws of reflection, ∠r=0∘, which implies reflected ray will retrace the path of incident ray.
In this case, ∠i=0. Following laws of reflection, ∠r=0∘, which implies reflected ray will retrace the path of incident ray.Suggest Corrections
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