Question

Why does a ray of light passing through the centre of curvature gets back reflector?

Answer 1

Here is your answer ⤵⤵⤵

A ray of light passing through the centre of curvature of a concave mirror retraces its path (gets reflected along the same path), because as the ray of light passes through centre of curvature of a concave mirror it strikes the mirror along the normal i.e. it incidences on to the mirror at 90 degree.

HOPE IT HELPS YOU ☺☺ !!!