Question

What happens to the following light rays after reflection from a concave mirror?
1. A ray of light passing through the C
2. A ray of light passing throgh F
3. A ray of light parallel to the principal axis.

Answer 1

(i) A light ray passing through C will retrace its path on reflection from the spherical mirror.
(ii) A light ray passing through F will reflect parallel to the principal axis after reflection from the spherical mirror.
(iii) A light ray parallel to the principal axis will pass through the focus after reflection from the spherical mirror.