What is the lowest frequency that will resonate in an organ pipe 2.00 m in length,closed at one end? The speed of sound in air is 340 m/s.
A)42.5 Hz
B)85.0 Hz
C)170 Hz
D)680 Hz

Question

Quizplus · Accepted Answer

For a pipe closed at one end, the fundamental frequency is given by $ f = \frac{v}{4L} $, where $ v $ is the speed of sound and $ L $ is the length of the pipe. Substituting the given values, $ f = \frac{340}{4 \times 2} = 42.5 $ Hz.

What Is the Lowest Frequency That Will Resonate in an Organ