Physics
Grade-10
Easy

Question

In which of the following purposes lenses are not used?

  1. Spectacles
  2. Microscopes
  3. Magnifying glass
  4. Refrigerator

hintHint:

The lenses are used for optical purposes to focus or disperse a light beam by means of refraction.

The correct answer is: Refrigerator


    Lenses are not used in refrigerators.
    • The lenses are used for various purposes in optical devices.
    • The concave lenses are converging lenses and the convex lenses are diverging lenses.
    • They are mainly used in designing optical devices such as microscopes, spectacles, magnifying glasses, etc. which focuses or disperses a light beam by means of refraction.

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