AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
(C) It reflects back along the same path.
A ray passing through the centre of curvature C of a concave mirror falls normally on the mirror surface, so it reflects back along the same path.
Source: Chapter 9, Section 9.2.2
A ray through C is along the radius (normal) of the spherical mirror, so the angle of incidence = 0°, and it retraces its path. This is one of the four standard rays used in ray diagrams for spherical mirrors. Examiners expect you to recall this rule directly.