A plane mirror is inclined at an angle with horizontal as shown in figure. If a ray incident at 10° above horizontal becomes vertical after reflection 10° from this mirror, the find 0.A
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Answer: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
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Explanation:
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