An organ pipe open at both ends is 1.5 m long. A second organ pipe that...
An organ pipe open at both ends is 1.5 m long. A second organ pipe that is closed at one end and open at the other is 0.75 m long. The speed of sound in the room is 330 m/s. Which of the following sets of frequencies consists of frequencies which can be produced by both pipes?
| a. |
220 Hz, 440 Hz, 660 Hz |
|
| b. |
330 Hz, 550 Hz, 770 Hz |
|
| c. |
220 Hz, 660 Hz, 880 Hz |
|
| d. |
110 Hz, 220 Hz, 330 Hz |
|
| e. |
220 Hz, 330 Hz, 550 Hz |
Homework Answers
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An organ pipe open at both ends is 1.5 m long. A second organ
pipe that...
Consider a musical instrument that can be regarded as a long pipe with both ends closed...
Consider a musical instrument that can be regarded as a long
pipe with both ends closed (see Fig. 1). Let the pipe length
L=0.250 m. Closed ends mean that you should have nodes at the two
ends. Assume sound speed to be v=330 m/s.
(6 points) Consider a musical instrument that can be regarded as a long pipe with both ends closed (see Fig. 1). Let the pipe length L 0.250 m. Closed ends mean that you should have nodes...
Pipe A is open at both ends and has length LA. Pipe B is closed at...
Pipe A is open at both ends and has length LA. Pipe B is closed at one end and open at the other and has length LB. When both pipes produce sound in their second overtones, the result is a beat frequency of 2.5 Hz. a. Make a careful sketch of the standing wave pattern for the air displacement for each pipe. Next to each sketch write the wavelength for each pipe in terms of the pipe lengths LA...
Pipe A is open at both ends and has length LA. Pipe B is closed at...
Pipe A is open at both ends and has length LA. Pipe B is closed at one end and open at the other and has length LB. When both pipes produce sound in their second overtones, the result is a beat frequency of 2.5 Hz. a. Make a careful sketch of the standing wave pattern for the air displacement for each pipe. Next to each sketch, write the wavelength for each pipe in terms of the pipe lengths LA and...
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)
2B.5 An organ pipe open at both ends has a fundamental frequency of 440 Hz (concert...
2B.5 An organ pipe open at both ends has a fundamental frequency of 440 Hz (concert A). What is the length of this pipe? What are the frequencies of its first three harmonics? 02B.6 An aroan nina
A particular tube for a pipe organ is 4m long and open at both ends. The speed of sound is about 340m/s. Draw the fi...
A particular tube for a pipe organ is 4m long and open at both ends. The speed of sound is about 340m/s. Draw the first three harmonics and find the frequencies for the pressure wave view of sound. For each frequency, find another tube length that could also have this frequency as a harmonic. Now pretend the tube is closed at one end. Draw the first two harmonics and find the frequencies.
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?
SOLUTION (A) Find the frequencies if the pipe is open at both ends. _V 343 m/s...
SOLUTION (A) Find the frequencies if the pipe is open at both ends. _V 343 m/s Substitute into whole harmonics equation, with n = 1. 11-222(2.46 m) = 69.7 Hz Multiply to find the second and third harmonics. 12 - 27 - 139 Hz 13 = 3f7 - 209 Hz (B) How many harmonics lle between 20 Hz and 20000 Hz for this pipe? 343 m/s Set the frequency in the harmonics equation equal to 2.00 x 104 Hz and...
A pipe that is 0.22 m long and open at both ends vibrates in the third...
A pipe that is 0.22 m long and open at both ends vibrates in the third harmonic with a frequency of 2390 Hz. What is the speed of sound in the air in this pipe? 6 m/s
4. An organ pipe open at both ends has the second harmonic of 512 Hz. What...
4. An organ pipe open at both ends has the second harmonic of 512 Hz. What would the frequency of its third harmonic be if you close one end of the pipe? a) 1150 Hz b) 384 Hz c) 1410 Hz d) 896 Hz e) 640 Hz
Consider a musical instrument that can be regarded as a long
pipe with both ends closed (see Fig. 1). Let the pipe length
L=0.250 m. Closed ends mean that you should have nodes at the two
ends. Assume sound speed to be v=330 m/s.
(6 points) Consider a musical instrument that can be regarded as a long pipe with both ends closed (see Fig. 1). Let the pipe length L 0.250 m. Closed ends mean that you should have nodes...
2B.5 An organ pipe open at both ends has a fundamental frequency of 440 Hz (concert A). What is the length of this pipe? What are the frequencies of its first three harmonics? 02B.6 An aroan nina
SOLUTION (A) Find the frequencies if the pipe is open at both ends. _V 343 m/s Substitute into whole harmonics equation, with n = 1. 11-222(2.46 m) = 69.7 Hz Multiply to find the second and third harmonics. 12 - 27 - 139 Hz 13 = 3f7 - 209 Hz (B) How many harmonics lle between 20 Hz and 20000 Hz for this pipe? 343 m/s Set the frequency in the harmonics equation equal to 2.00 x 104 Hz and...
A pipe that is 0.22 m long and open at both ends vibrates in the third harmonic with a frequency of 2390 Hz. What is the speed of sound in the air in this pipe? 6 m/s
4. An organ pipe open at both ends has the second harmonic of 512 Hz. What would the frequency of its third harmonic be if you close one end of the pipe? a) 1150 Hz b) 384 Hz c) 1410 Hz d) 896 Hz e) 640 Hz
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