Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 30 - Think and Explain: 73

Answer

Emission and absorption are two sides of the same coin. A good radiator/emitter is also a good absorber. Objects both radiate and absorb energy.

Work Step by Step

In thermal equilibrium, radiation and absorption happen at equal rates, and there is no change in temperature.
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