Question

How long is an open-open pipe if the fundamebntal frequency is 60Hz. (Hint: Speed of Sound in the Air is 340m/s)

Answer 1

Fundamental frequency, f1=v/2l

Let the length of the pipe be ‘l’

By given: v=340m/s, f1=60Hz

Thus, 60=340/2l

60=170/l

l=170/60=17/6=2.8333

The length of the pipe is 17/3=2.8333m.