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 - Problems - Page 354: 22

Answer

$\approx 20 dB$

Work Step by Step

See figure 12–6. A 100-Hz tone at a sound level of 50 dB has a loudness level of about 20 phons. A 5000-Hz tone on the 20-phon curve corresponds to a sound level of $\approx 20 dB$.

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