Conceptual Physics (12th Edition)

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

Chapter 26 - Reading Check Questions (Comprehension): 22

Answer

The low frequencies of infrared waves cause not just electrons, but whole atoms and molecules to vibrate. This raises the internal energy of the material, thus earning infrared light its nickname of "heat waves".

Work Step by Step

This is discussed on pages 491-492.
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