A ray of light is incident on a plane mirror at an angle of 60o .The angle of deviation produced by the mirror is
A
90o
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B
120o
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C
30o
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D
60o
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Solution
The correct option is C30o The
incident ray will have an angle of reflection of 60 degrees (made with a
surface normal to the mirror surface). The reflected ray will make an angle of 30
degrees (90 - 60 degrees) with the mirror surface