Answer
$85\,m$
Work Step by Step
$f_{beat}=|f_{1}-f_{2}|=\Delta f=|498\,Hz-502\,Hz|=4\,Hz$
$T_{beat}=\frac{1}{\Delta f}=\frac{1}{4\,Hz}=0.25\,s$
$\Delta x=v T_{beat}=(340\,m/s)(0.25\,s)=85\,m$
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
by Knight, Randall D.
Published by
Pearson
ISBN 10:
0133942651
ISBN 13:
978-0-13394-265-1
Chapter 39 - Wave Functions and Uncertainty - Exercises and Problems - Page 1137: 18
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