1What is a spherical mirror, and how are its two kinds told apart?
2Define the pole of the mirror, the centre of curvature and the radius of curvature.
3What is the principal axis, and why do rays arriving parallel to it matter?
4How does the principal focus of a concave mirror differ from that of a convex mirror?
5How is focal length defined, and in what unit is it measured?
6State the three rules of reflection for a concave mirror.
7State the three rules of reflection for a convex mirror.
8Why does a ray coming from the centre of curvature return along the same path?
9Why is a convex mirror, and not a concave one, fixed at a blind bend in a road?
10A concave mirror is made from a sphere of radius 40 centimetres. Where does its centre of curvature lie, and where does the principal focus lie compared with it?