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Show an incident ray AO and the normal ON a plan mirror. draw the reflected ray and then find the angle between the incident and reflected rays.

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Question

Show an incident ray AO and the normal ON a plan mirror. draw the reflected ray and then find the angle between the incident and reflected rays.

Short/Brief Note
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Solution


Since the angle of incidence = 60°.
From the diagram, the Angle of reflection to the normal = angle of incidence to the normal = 60°.
So, the angle between the incident ray and reflected ray = Angle of incidence + Angle of reflection = 60° + 60° = 120°.

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Chapter 6: Light - Reflection of Light [Page 247]

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Frank Physics Part 1 [English] Class 9 ICSE
Chapter 6 Light
Reflection of Light | Q 39 | Page 247

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