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JAMB Physics 1978 Question 23

Question 23

Heat Transfer

The heat from the sun reaches the earth by the process of

  1. A.insulation
  2. B.precipitation
  3. C.conduction
  4. D.convection
  5. E.radiation
Show the answer and explanation

Answer: E (radiation)

Explanation

Space between the sun and the earth is almost a vacuum, and only radiation can travel through a vacuum.