Answer
The answer is below.
Work Step by Step
We use the equation for wavelength to find:
a) $\lambda= \frac{1500m/s}{8\times10^6Hz}=1.9\times10^{-4}m$
b) $\lambda= \frac{1500m/s}{3.5\times10^6Hz}=4.3\times10^{-4}m$
Essential University Physics: Volume 1 (4th Edition)
by Wolfson, Richard
Published by
Pearson
ISBN 10:
0-134-98855-8
ISBN 13:
978-0-13498-855-9
Chapter 14 - Exercises and Problems - Page 270: 15
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