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JAMB Physics 2013 Question 29

Question 29

Light and Reflection

A man 1.5m tall is standing 3m in front of a pinhole camera whose distance between the hole and the screen is 0.1m. What is the height of the image of the man on the screen?

  1. A.0.05m.
  2. B.0.15m.
  3. C.0.30m.
  4. D.1.00m.
Show the answer and explanation

Answer: A (0.05m.)

Explanation

Image height = object height × image distance ÷ object distance = 1.5 × 0.1 ÷ 3 = 0.05 m.