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JAMB Physics 1983 Question 12

Question 12

Lenses and Optical Instruments

Which of the following statements about defects of vision is/are CORRECT? I. For a long sighted person, close objects appear blurred. II. For a short sighted person, distant objects appear blurred III. Short sight is corrected by using a pair of converging lenses.

  1. A.I only
  2. B.II only
  3. C.I and II only
  4. D.II and III only
  5. E.I, II and III.
Show the answer and explanation

Answer: C (I and II only)

Explanation

A long-sighted person cannot see near objects clearly and a short-sighted person cannot see distant ones. Short sight is corrected with diverging (concave) lenses, so III is wrong.