Class 10 Light: Reflection and Spherical Mirrors
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Question
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A ray of light strikes a plane mirror at an angle of 30° to the normal. What is the angle between the incident ray and the reflected ray?
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Answer
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60°
By the law of reflection the angle of reflection equals the angle of incidence, 30°. The two rays are on opposite sides of the normal, so the angle between them is 30° + 30° = 60°.
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