Q. A ray is reflected in turn by three plane mirrors mutually at right angles to each other. The angle between the incident and the reflected rays is
A) $90{^\circ}$
B) $60{^\circ}$
C) $180{^\circ}$
D) none of these
Explanation
(c) Ray after reflection from three mutually perpendicular mirrors becomes anti-parallel
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.