What are some examples of concave mirrors?

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Apr 23, 2016

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Concave mirrors are used in reflecting telescopes, catadioptric lens systems, headlamps, automobile headlights, solar cookers, shaving/cosmetic mirrors, and spotlights (like the bat signal).

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In general there are three principle uses for concave mirrors:

  • to collect light from a large area into a small area (as in a telescope)

  • to gather light from a point-like source and direct it outward in a beam (as with a headlamp, or spotlight)

  • to form an enlarged image when held close up (as in the case of a shaving mirror, a cosmetic mirror in a compact, or the small mirror that dentists and dental hygienists use to examine teeth).

Although it doesn't look like it, a satellite TV dish is a concave mirror that reflects light in the microwave range of wavelengths.

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Concave mirrors are also used by dentists and ophthalmologists.

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Nov 17, 2014
  1. a reflector in torches, search lights, head lights of motor vehicles etc. to get powerful parallel beam of light.

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  1. head mirrors to focus light on the body parts like eyes, ears, nose, throat etc., to be examined.

  2. a shaving mirror/makeup mirror, as it can form erect and magnified image of the face.

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  1. The dentists use concave mirror to observe large images of the teeth.
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  2. Large concave mirrors are used to concentrate sunlight to produce heat in solar cookers, solar furnace etc.
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  3. reflecting type telescope.
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