A concave or converging mirror reflect light from inside its surface. While convex or converging mirror reflect light from outside its surface.
The nature and position of the images formed by curved mirrors, could also be found with the aid of ray diagrams drawn to scale , employing the following rule:
* A ray parallel to the principal axis passes through the principal focus.
* A ray through the centre of curvature is reflected back along the same path.
* A ray passing through the principal focus must be reflected parallel to the principal axis.












