Two plane mirrors AB and CD are placed at a right angle to one another. A ray of light PQ hits AB at Q making an angle of 45° as shown in the diagram. This ray will be reflected from the mirror CD at an angle of:
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Answer:
according to 1st law of reflection , angle Q is 45 degree.
if we go with angle sum property of triangles , the ray reflected from mirror BD will be 45 degree.
so, the answer is 45 degree
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Answer:
45 degree
Explanation:
according to laws of reflection angle of incidence is congruent to angle of reflection
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