Question 1 Report

If the fundamental frequency of a closed pipe organ on a day when the speed of sound is 340ms-1 is 170Hz, then the length of the pipe is

Answer Details

λ $\lambda $ = vf $\frac{v}{f}$

= 340170 $\frac{340}{170}$

= 2m ; for closed pipe

L = 14 $\frac{1}{4}$λ $\lambda $

= 14 $\frac{1}{4}$ x 21 $\frac{2}{1}$

= 0.5m

= 50cm