Rules of ray diagram for representation of images formed
- A ray passing through the centre of curvature hits the concave spherical mirror and retraces its path.
- Rays parallel to the principal axis passes through the focal point or focus.
Image formation by spherical mirrors
For objects at various positions, the image formed can be found using the ray diagrams for the special two rays. The following table is for a concave mirror.

Uses of spherical mirror based on the image formed
Concave and Convex mirrors are used in many daily purposes.
Example: Rear view mirrors in vehicles, lamps, solar cookers.
