Question

@Abhisar
A standing wave of the third harmonic is induced in a stopped pipe. The speed of sound through the air of the pipe is 340 m/s, and the frequency of the wave is 235 Hz. What is the length of the pipe?

109 cm
133 cm
189 cm
124 cm

Answer 1

@aaronq

Answer 2

A stopped pipe would be a pipe closed at both ends or at only 1 end?

Answer 3

Closed at one end

Answer 4

so the formula for this type of pipe is: \(\sf f_m=m\dfrac{v}{4L}\)

third harmonic is m=3

Answer 5

Thanks

Answer 6

no problem