Conceptual Physics (12th Edition)

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

Chapter 30 - Think and Explain: 51

Answer

a. An "absorption spectrum" is observed, with dark lines in characteristic positions against a continuous background. b. The "emission spectrum" of the hot sodium vapor will contain a number of discrete bright lines, whose positions correspond to those of missing lines in the absorption spectrum.

Work Step by Step

This is discussed on pages 569-570. Also, see Figure 30.9 on page 569.
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