Consider a closed pipe of length L. What are the wavelengths of the three lowest tones produced by this pipe?
A)4L, 2L, L
B)2L, L, L/2
C)2L, L, 2L/3
D)3L, L, L/3
E)4L, 4L/3, 4L/5

Question

Quizplus · Accepted Answer

In a closed pipe, the wavelengths of the harmonics are given by 4L/n, where n is an odd integer (1, 3, 5,...). Thus, the wavelengths of the three lowest tones are 4L (n=1), 4L/3 (n=3), and 4L/5 (n=5).

Consider a Closed Pipe of Length L