Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 11 - Oscillations and Waves - Questions: 26


This description is accurate when tested (try it!).

Work Step by Step

This poetic description of waves is true, as you can verify yourself with a bowl of water, but poem does not address the fact that the initial wave then reflects from the walls (or passes through the center), becoming the other kind of wave. Furthermore, the amplitude of the waves also changes as the waves travel. See the discussion in Section 11–9 for spherical waves in 3-D. In 2-D, as the circular wave expands from the center, the energy it carries is distributed over a larger and larger circumference, so the wave intensity has to decrease. Because the wave intensity is proportional to the square of the amplitude, the amplitude decreases. On the other hand, for waves propagating toward the center, the amplitude increases.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.