. when a pipe is open at both end l= k / 2 l= length of the pipe k=wave length of the pipe there fore 2l = k we have f = v k f = frequency of the wave v = velocity of the wave k = wave length of the pipe f = v k f = v (2l) l = f / 2v l= 564 / (2 * 344) l= 564/ 688 l =.82m l=82m
