Question

An open pipe is 1.42 m long

What fundamental frequency
does it produce?
(Speed of sound = 343 m/s)
(Unit = Hz)

Answer 1

the fundamental frequency produced by the open pipe is 120.78 Hz

Step-by-step explanation:

Given;

length of the open pipe, L = 1.42 m

speed of sound in air, v = 343 m/s

The length of the open pipe for the fundamental frequency is equivalent to half of wavelength;

`L = (\lambda)/(2) \\\\\lambda = 2L`

The fundamental frequency produced by the open pipe is calculated as;

`f_o = (v)/(\lambda) \\\\f_o = (v)/(2L) \\\\f_o = (343)/(2 * 1.42) \\\\f_o = 120.78 \ Hz`

Therefore, the fundamental frequency produced by the open pipe is 120.78 Hz