As shown in the figure, the height of an air column in a particular pipe is adju

Question

As shown in the figure, the height of an air column in a particular pipe is adjusted by changing the water level in the pipe. In a traditional experiment, a tuning fork is placed over the pipe, and the height of the air column is adjusted, by moving a reservoir of water up and down, until the pipe makes a loud sound, which is when the pipe's fundamental frequency matches the frequency of the tuning fork. If the speed of sound is 340 m/s, and an air column of 30.0 cm produces the loudest sound what is the frequency of the tuning fork? Hz

Explanation / Answer

in a closed pipe fundamental frequency is

frequency f = vsound/4l

f = v/4l

f = 340/4*0.3

f = 283.3 Hz

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