College Physics (7th Edition)

Published by Pearson
ISBN 10: 0-32160-183-1
ISBN 13: 978-0-32160-183-4

Chapter 14 - Sound - Learning Path Questions and Exercises - Multiple Choice Questions - Page 522: 11

Answer

(c) phase difference

Work Step by Step

Sound waves interference of two point sources depends on phase difference as related to path length difference. Sound waves that arrive at a point in phase re-inforce each other which is also called constructive interference. Sound waves that arrive at a point out of phase cancel each other which is also called destructive interference.
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