Physics Note: Key Advantages of using a Parabolic Concave Mirror

BY Team Aakash Byju's

The main advantage is that a parabolic concave mirror can produce a real image and magnified virtual image.

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Dentists use a concave mirror because the object (tooth) when it is kept close to a concave mirror produces a large virtual image.

 It enables him to observe the tooth clearly.

Another use is for shaving, a magnified view of the face helps smooth shave.

Concave mirrors are used as searchlights and headlights in automobiles.

The light source is kept at the focus of the mirror so that after reflection, parallel rays of light with larger intensity emerge.

Concave mirrors are used in solar furnaces and other solar heating devices.

Water, food or metal that need to be heated is placed at the focus of a large parabolic concave reflector.

After reflection, a beam of sunlight from the sun converges on the substance and heats it.

Concave mirrors are also used as reflectors in astronomical telescopes.