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CBSE Class 12-science Answered

Kindly provide a solution with diagram and explanation.   
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Asked by Varsneya Srinivas | 24 Mar, 2018, 08:17: PM
answered-by-expert Expert Answer
Fig(a) shows the ray diagram if the angle between mirrors is 45°. It can be seen from figure, the ray retraces itself at 2nd reflection.
 
Fig(b) shows the ray diagram if the angle between mirrors is 30°. It can be seen from figure, the ray incident normally before third reflection.
Hence it will retrace itself after third reflection
 
Fig(b) shows the ray diagram if the angle between mirrors is 30°. It can be seen from figure, there wont be any retracing
Answered by Thiyagarajan K | 24 Mar, 2018, 11:12: PM
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