3. If you were to build a pi pe organ with open-open tube pipes that could...

Question

Question

Answer 1

Answer #1

(A) Speed of sound in air = 343 m/s

Wavelength of 20 Hz wave = 343/20 = 17.15m

Wavelength of 20 kHz wave = 17.15mm

Length of open pipe is approximately half the wavelength (ignoring end corrections)

L (of 20 Hz wave) = 17.15m/2 = 8.575 m

L (of 20 kHz wave) = 8.575 mm

(B) Longer pipe means longer wavelength and frequency is inversely proportional to wavelength. So yes, longer pipe will produce the lower frequency.

Answer 2

Similar Homework Help Questions

church organ pipe is open at both ends. The third (m 3) harmonic has frequency 262...

church organ pipe is open at both ends. The third (m 3) harmonic has frequency 262 Hz. What is the length (L) of the pipe? Look closely at Fig. 17.15 (b) for open-open columns, Equation 17.17 for fm, and use var 343 m/s. L pipe
What is the beat frequency heard when two organ pipes, each open at both ends, are...

What is the beat frequency heard when two organ pipes, each open at both ends, are sounded together at their fundamental frequencies if one pipe is 46 cm long and the other is 63 cm long? (the speed of sound is 340 m/s)
Two open-open pipes have lengths that differ by 1.00%. When both are struck, emitting sound at...

Two open-open pipes have lengths that differ by 1.00%. When both are struck, emitting sound at the fundamental frequency, a beat frequency 2.50 Hz can be heard. What is the approximate length of each pipe? O 1.02 meters 0 0.68 meters O 0.34 meters 1.36 meters

Organ pipe A with both ends open has a fundamental frequency of 320.0 Hz. The third...

Organ pipe A with both ends open has a fundamental frequency of 320.0 Hz. The third harmonic of organ pipe B with one end open has the same frequency as the second harmonic of pipe A. Assume a speed of sound of 343 m/s. What is the length of Pipe A? What is the length of Pipe B?
A friend in another city tells you that she has two organ pipes of different lengths,...

A friend in another city tells you that she has two organ pipes of different lengths, one open at both ends, the other open at one end only. In addition, she has determined that the beat frequency caused by the second-lowest frequency of each pipe is equal to the beat frequency caused by the third-lowest frequency of each pipe. Her challenge to you is to calculate the length of the organ pipe that is open at both ends, given that...