4. Four tubes have lengths, either 1.0 m or 2.0 m. Tubes 1 and 3 are closed tubes (only one end is open) while tubes 2 and 4 are open tubes (both ends are open). The third harmonic is set up in each tube, and some of the sounds that escape from them are detected by detector D, which moves directly away from the tubes. 21 3 D 4 In terms of the speed of sound v, what speed must the detector have such that the detected frequency of the sound from (a) tube 1, (b) tube 2, (c) tube 3, and (d) tube 4 is equal to the tube's fundamental frequency?

4. Four tubes have lengths, either 1.0 m or 2.0 m. Tubes 1 and 3 are closed tubes (only one end is open) while tubes 2 and 4 are open tubes (both ends are open). The third harmonic is set up in each tube, and some of the sounds that escape from them are detected by detector D, which moves directly away from the tubes. 21 3 D 4 In terms of the speed of sound v, what speed must the detector have such that the detected frequency of the sound from (a) tube 1, (b) tube 2, (c) tube 3, and (d) tube 4 is equal to the tube's fundamental frequency?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Interference of sound

Seiche

A seiche is an oscillating standing wave in a body of water. The term seiche pronounced saysh) can be understood by the sloshing of water back and forth in a swimming pool. The same phenomenon happens on a much larger scale in vast bodies of water including bays and lakes. A seizure can happen in any enclosed or semi-enclosed body of water.

Question

4. Four tubes have lengths, either 1.0 m or 2.0 m. Tubes 1 and 3 are closed tubes (only one
end is open) while tubes 2 and 4 are open tubes (both ends are open). The third harmonic
is set up in each tube, and some of the sounds that escape from them are detected by
detector D, which moves directly away from the tubes.
2
3
D
In terms of the speed of sound v, what speed must the detector have such that the detected
frequency of the sound from (a) tube 1, (b) tube 2, (c) tube 3, and (d) tube 4 is equal to the
tube's fundamental frequency?
(a) Tube 1
(b) Tube 2
(c) Tube 3
(d) Tube 4
4.

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Step 2 Determine the nth harmonic frequency for open and closed tuve

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Step 3 Calculate the effective frequency at D under effect of Doppler phenomenon

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Step 4 Determine v for tube 1 and 3 i.e closed tube

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