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Question

Which type of mirror is used in the torches used at homes or by dentists?


  1. Plano convex

  2. Plane

  3. Convex

  4. Concave


Solution

The correct option is D

Concave


Concave mirrors are used in torches used at homes or by dentists.

In a torch, the bulb is placed at the focal point of the concave mirror so the light from the bulb is reflected as a parallel beam. This helps users to specifically see the object, upon which the beam falls.

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