Conceptual Physics (12th Edition)

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

Chapter 19 - Think and Explain - Page 371-372: 64


The wavelength decreases.

Work Step by Step

The wave speed v is frequency multiplied by wavelength. $$v = f \lambda $$ Dipping your finger more frequently means that the frequency f increases. The wavelength decreases. Their product remains the same because the wave speed doesn't change.
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