A concave mirror, or converging mirror, has a reflecting surface that bulges inward (away from the incident light). Concave mirrors reflect light inward to one focal point.They are used to focus light.
A convex mirrorfish eye mirror or diverging mirror, is a curved mirror in which the reflective surface bulges toward the light source. Convex mirrors reflect light outwards, therefore they are not used to focus light.
Uses of Concave mirrors:
1. Concave mirrors are used as reflectors in torches, vehicle headlights and search lights to get powerful beam of light.
2. Concave mirrors are used a shaving mirrors to see a large image of the face.
3. Concave mirrors are used by dentists to see the large images of the teeth of patients.
4. Large concave mirrors are used in the field of solar energy of focus sun's rays for heating solar furnaces.