Answer
$k=0.26rad/cm$
Work Step by Step
To find $k$, a formula using $k$ and wavelength ($\lambda$) must be used. This is $$k=\frac{2\pi}{\lambda}$$ Substituting the value of $\lambda=24cm $ yields $$k=\frac{2\pi}{24cm}=0.26rad/cm$$
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 17 - Waves-II - Problems - Page 511: 82b
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