Acrude model of the human throat is that of a pipe open at both ends with a vibrating source to introduce the sound into the pipe at one end. assuming the vibrating source produces a range of frequencies, discuss the effect of changing the pipe's length.

Changing Length

Explanation:

We know the Resonant frequency depends upon length and varies as inversely to the length of air column

thus by changing the length of Pipe we can chnge the frequency

you have to draw the persons position over there

the device is called “ rocket engine”