One of the harmonics of a column of air in a tube that is open at both ends has a frequency of 448 Hz, and the next higher harmonic has a frequency of 576 Hz. What is the fundamental frequency
Of the air column in this tube?
A) 88 Hz
B) 256 Hz
C) 64 Hz
D) 128 Hz
E) 32 Hz

Question

Quizplus · Accepted Answer

The difference between consecutive harmonics in an open tube is equal to the fundamental frequency. The difference between 576 Hz and 448 Hz is 128 Hz, which is the fundamental frequency.

One of the Harmonics of a Column of Air in a Tube