Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 17 - Waves-II - Questions - Page 505: 4b

Answer

Antinode.

Work Step by Step

For all even harmonics (such as $n=2$), there is an antinode at the midpoint. Therefore, through induction, it can be concluded that $n=6$, an even harmonic, will have an antinode at the midpoint.
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