JAMB Physics 2011 Objective — Question 16

Question 16 of 49 from the Joint Admissions and Matriculation Board (JAMB) Physics 2011 Objective paper, with the correct answer and a full explanation.

A perfect emitter or absorber of radiant energy is a

A. A. white body
B. B. red body
C. C. conductor
D. D. black bodyCorrect

Explanation

A black body is the best absorber as well as the best emitter of radiant heat. A white body, on the other hand, is the best reflector.

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