Physics: Principles with Applications (7th Edition)

by Giancoli, Douglas C.

Published by Pearson

ISBN 10: 0-32162-592-7

ISBN 13: 978-0-32162-592-2

Chapter 12 - Sound - Misconceptual Questions - Page 353: 3

Answer

Choice B.

Work Step by Step

Sound intensity level is not a linear scale; iIt is a logarithmic scale. If the “sound intensity” doubles, as would happen with 2 identical sound sources, the “sound level” increases by 10 log 2, or about 3 dB.

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