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JAMB Physics 1987 Question 35

Question 35

Refraction of Light

A pool of water appears to be 1.0 m deep when viewed vertically from above. If the refractive index of water is 1.33, what is the actual depth of the pool?

  1. A.0.750 m
  2. B.1.013 m
  3. C.1.330 m
  4. D.13.3000 m
Show the answer and explanation

Answer: C (1.330 m)

Explanation

Real depth = refractive index × apparent depth = 1.33 × 1.0 = 1.33 m.