Question

dA ray of light makes an angle of 10⁰ with the horizontal and strikes a plane mirror which is inclined at 25⁰ to the horizontal. By what angle should be the plane mirror be rotated so that the ray of light will be vertically reflected? can you answer fast pls​

Answer 1

Explanation:

Angle between incident and reflected ray =80

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Angle of incidence = Angle of reflected ray =40

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Angle of reflected ray with mirror =90°−40°=50°

So angle with horizontal =90°−50°=40°