Calculate the deviation suffered by a ray which is incident on a plane horizontal mirror at an angle of 60o to the normal
A
120o
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B
90o
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C
45o
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D
60o
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Solution
The correct option is C60o So from the figure angle of reflection is 600, by laws of reflection hence, angle of deviation δ=1800−i−r=1800−600−600 δ=600