Two plane mirrors are inclined to each other such that a ray of light incident on first mirror and parallel to second is reflected from second mirror parallel to first mirror. Find angle between two mirrors such that light ray retraces its path after third reflection
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two plane mirrors are inclined to each other such that a Ray of light incident on first mirror at Bala to second selected from second second mirror parallel to first minute the angle between them is 2 then the light come into is incident then it back normally to the incident that the normal of incident is equal to normal optiplex and then the zero degree angle is take place
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50 degree
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