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Two mirrors of the same length are arranges as show in the diagram. A ray of light NO ...


Two mirrors of the same length are arranges as show in the diagram. A ray of light NO strikes the system at O and emerges along PQ. The emergent ray has been deviated through
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  • A 220\(^o\)
  • B 200\(^o\)
  • C 210\(^o\)
  • D 180\(^o\)
Correct Answer: Option D
Explanation:
Deviation angle
= \(\theta_1 + \theta_2\) = 50 + 50 + 40 + 40
= 180\(^o\)

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