Q

A ray passes through C before striking a concave mirror. What is the angle between the incident and reflected rays?

RRB Group-D 17/08/2022 / Shift-I 2022
✓ Answer: A 0°
The ray is normally incident and retraces its path, so the geometrical angle between the incident and reflected ray lines is 0°. The change in propagation direction is 180°.
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