Optics Question 528

Question: A ray is reflected in turn by three plain mirrors mutually at right angles to each other. The angle between the incident and the reflected rays is

[Roorkee 1995]

Options:

A) $ 90{}^\circ $

B) $ 60{}^\circ $

C) $ 180{}^\circ $

D) None of these

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Answer:

Correct Answer: C

Solution:

Ray after reflection from three mutually perpendicular mirrors becomes anti-parallel.



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