An organ pipe 1.2m long and open at both ends produces a note with the fundamental frequency. If the speed of sound in air is 345 m/s, what is the fundamental frequency?
Wave equation (f = v/lambda)
The Attempt at a Solution
My textbook solves the problem like so:
My question is: why do they use the full wavelength here? As I understand it, the fundamental frequency is only half a wavelength. This would be more like the second resonant length, which was not what the question asks.