College Physics (4th Edition)

Published by McGraw-Hill Education
ISBN 10: 0073512141
ISBN 13: 978-0-07351-214-3

Chapter 11 - Problems - Page 428: 17

Answer

(a) The frequency of the sound wave is $340~Hz$ (b) The frequency of the radio wave is $3.0\times 10^8~Hz$

Work Step by Step

(a) We can find the frequency: $\lambda~f = v$ $f = \frac{v}{\lambda}$ $f = \frac{340~m/s}{1.0~m}$ $f = 340~Hz$ The frequency of the sound wave is $340~Hz$ (b) We can find the frequency: $\lambda~f = c$ $f = \frac{c}{\lambda}$ $f = \frac{3.0\times 10^8~m/s}{1.0~m}$ $f = 3.0\times 10^8~Hz$ The frequency of the radio wave is $3.0\times 10^8~Hz$
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