JAMB Physics 1987 Question 26

Question 26

Heat Transfer

Which of the following phenomena explains the fact that a house whose roof is coated with white paint will be cooler in the hot season than one coated with black paint?

  1. A.conduction
  2. B.convection
  3. C.refraction
  4. D.reflection
Show the answer and explanation

Answer: D (reflection)

Explanation

A white roof reflects most of the sun's radiation, while a black roof absorbs it.