Conceptual Physics (12th Edition)

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

Chapter 21 - Think and Explain: 43

Answer

The frequency increases, and the pitch rises.

Work Step by Step

For waves, the wave speed equals the frequency multiplied by wavelength. Holding the string against a fret decreases the wavelength, and so this increases the frequency/pitch.
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