Answer
$$2.00 \mathrm{m}
$$
Work Step by Step
The angular wave number is $k=2.00 \pi / 2=1.00 \pi \mathrm{m}^{-1}$ , so the wavelength is
$$
\lambda=2 \pi / k=2 \pi /\left(1.00 \pi \mathrm{m}^{-1}\right)=2.00 \mathrm{m} .
$$
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 16 - Waves-I - Problems - Page 475: 57b
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