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A light ray is incident normally on a plane mirror.

(a) What is its angle of incidence?

(b) What is the direction of reflected ray? Show it on a diagram.

Reflection of Light

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Answer

(a) When the ray of light is incident normally on a plane mirror the angle of incidence = 0°.

(b) The direction of reflected ray is same as the incident ray i.e., it retraces the path as shown below.

A light ray is incident normally on a plane mirror. What is its angle of incidence? What is the direction of reflected ray? Show it on a diagram. Reflection of Light, Concise Physics Solutions ICSE Class 9.

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