Question
A person cannot see distant objects clearly. His vision can be corrected by using the spectacles containing:
  1. Concave lenses.
  2. Plane lenses.
  3. Contact lenses.
  4. Convex lenses.

Answer

  1. Concave lenses.

Explanation:

Concave lenses are used to correct the defect of vision and enable the person to see distant objects clearly.

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