Answer
$0.322m$
Work Step by Step
We know that for destructive interference, the distance is a quarter wavelength, that is:
$d=\frac{\lambda}{4}$
$\implies d=\frac{v}{4f}$
We plug in the known values to obtain:
$d=\frac{343}{4(266)}=0.322m$
Physics Technology Update (4th Edition)
by Walker, James S.
Published by
Pearson
ISBN 10:
0-32190-308-0
ISBN 13:
978-0-32190-308-2
Chapter 14 - Waves and Sound - Problems and Conceptual Exercises - Page 494: 63
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