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## Types of Mirrors and the Properties of Images Formed ### Uses of spherical mirrors #### 1. Convex mirrors - A convex mirror has a reflective surface that bulges out towards the light source. - Its bulging out surface reflects light outwards and are not used to focus light. - A convex mirror g...

## Types of Mirrors and the Properties of Images Formed ### Uses of spherical mirrors #### 1. Convex mirrors - A convex mirror has a reflective surface that bulges out towards the light source. - Its bulging out surface reflects light outwards and are not used to focus light. - A convex mirror gives us a wider range of view. Some of its important uses are as given below: - They are used in the vehicles for getting the rear view of the objects. - They are used in shopping complexes, petrol pumps etc. for surveillance. #### 2. Concave mirrors - A concave mirror, or converging mirror, has a reflecting surface that is recessed inward away from the light source. - Concave mirrors reflect light inward to one focal point. So, they are used to focus light. - Concave mirrors are used by dentists to have a complete look of the teeth. - They are used as reflectors in the headlights of vehicles. - They are used in astronomical telescope for getting magnified images of planets, moons and stars and other galaxies. - In the making of solar cooker concave mirrors are used as concentrators. - They are used as shaving mirrors. - A concave mirror in a solar cooker is able to reflect and concentrate solar energy from over a wide area into a small area. It is used to focus light in cooking food. ### Lenses - A lens reflects light from a material surface for concentrating light. - Lenses are used in cameras, telescopes etc. - Convex lenses converge the edges of light rays and the concave lens diverges them. - The lens which converges light rays is convex and the one that diverges light rays is concave. Fig 16.7 Convex mirror used in surveillance Fig 16.8 Concave mirror used in cooking