Two plane mirrors are inclined at 70°. A ray incident on one mirror at angle e, after reflection falls on the second mirror and is reflected from the parallel to the first mirror, o is a) 50° b) 45° d) 55° c) 30°
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Answer:
50 degree
Step-by-step explanation:
In the triangle formed in figure-
70°+70°+90°−θ=180°
θ=50°
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