The lowest tone to resonate in an open pipe of length L is 200 Hz. Which one of the following frequencies will not resonate in the same pipe?
A)400 Hz
B)600 Hz
C)800 Hz
D)900 Hz
E)1000 Hz

Question

Quizplus · Accepted Answer

An open pipe resonates at its fundamental frequency and its harmonics, which are integer multiples of the fundamental frequency. The fundamental frequency is 200 Hz, so the resonant frequencies are 200 Hz, 400 Hz, 600 Hz, 800 Hz, 1000 Hz, etc. 900 Hz is not a multiple of 200 Hz, so it will not resonate.

The Lowest Tone to Resonate in an Open Pipe of Length