# What is a method to find the fundamental frequency of a pipe

## Homework Statement

How can i find the fundamental frequency of a closed piep (measuring cylinder) experimentally/ physicaly. I have done the maths and found the frequency but i want another way to prove this other than simply playing the calculated frequency back at the measuring cylinder. I have heard of a method called overblowing or Helmholtz frequency and using a program named Audacity to find it but after further research, i think Helmholzt frequency can only be used on bottles where there is a "neck" or part with a smaller diameter at the top. Can i use Helholzt frquency/ overblowing?

## The Attempt at a Solution

I have already mathematically found the fundamental frequency

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How can i find the fundamental frequency of a closed piep (measuring cylinder) experimentally/ physicaly. I have done the maths and found the frequency but i want another way to prove this other than simply playing the calculated frequency back at the measuring cylinder. I have heard of a method called overblowing or Helmholtz frequency and using a program named Audacity to find it but after further research, i think Helmholzt frequency can only be used on bottles where there is a "neck" or part with a smaller diameter at the top. Can i use Helholzt frquency/ overblowing?
we used to do an experiment called resonance tube and finding the wavelength of sound waves by resonating the air column in atube -the tube length could be varied by a water head and level of water in the tube.
a tuning fork of known frequency would be brought vibrating above the air column and if the length matched the stationary wave formation a resonating sound will be heared the first resonance would be at lambda/4 and then its multiples.
i think a variation of this experiment can determine the frequency of a tube closed at one end.

Tom.G