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JAMB Physics 2011 Question 17

Question 17

Heat Transfer

A perfect emitter or absorber of radiant energy is a

  1. A.white body
  2. B.red body
  3. C.conductor
  4. D.black body.
Show the answer and explanation

Answer: D (black body.)

Explanation

A black body absorbs all radiation falling on it and is also the best possible emitter of radiation.