Q

Match incident rays with reflected rays. A: Through or directed towards the principal focus. B: Through or directed towards the centre of curvature. C: Parallel to the principal axis. D: At the pole, making an angle with the principal axis. P: Passes through or appears to diverge from the focus. Q: On the other side of the principal axis at an equal angle. R: Parallel to the principal axis. S: Retraces the incident path.

RRB Group-D 06/10/2022 / Shift-II 2022
✓ Answer: C A-R, B-S, C-P, D-Q
A ray through the focus reflects parallel to the axis; a ray through the centre retraces its path; a parallel ray reflects through the focus; a ray at the pole obeys i = r.
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