366
Question
What should be the angle between two plane mirrors so that whatever be the angle of incidence, the incident ray and the reflected ray from the two mirrors be parallel to each other [KCET 1994; SCRA 1994]
What should be the angle between two plane mirrors so that whatever be the angle of incidence, the incident ray and the reflected ray from the two mirrors be parallel to each other [KCET 1994; SCRA 1994]
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Solution
The correct option is C
Incident ray and finally reflected ray are parallel to each other means 
Incident ray and finally reflected ray are parallel to each other means
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