Conceptual Physics (12th Edition)

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

Chapter 20 - Think and Rank: 42


B, A, C, D.

Work Step by Step

The beat frequency is the difference in the frequencies given. In the order BACD, the differences are 6 Hz, 4 Hz, 3 Hz, and 2 Hz.
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