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JAMB Physics 2001 Question 10

Question 10

Heat Transfer

Ice cubes are added to a glass of warm water. The glass and water are cooled by

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

Answer: C (conduction and convection)

Explanation

Heat passes from the water into the ice by conduction where they touch, and the cold water sinks and sets up convection currents that cool the rest.