Practice Problems
Assorted Resonance
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Question 1
What is the wave speed of a wave traveling through a long spring if its frequency is 14 Hz and its wavelength is 2.9 m.
16.9 m/sec
4.83 m/sec
0.21 m/sec
40.6 m/sec
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Question 2
Given that the spring in
Question 1
does not change, what would be the wave's new wavelength if the frequency of oscillation were to be doubled?
5.80 meters
1.45 meters
20.3 meters
2.90 meters
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Question 3
A string vibrates at 319 Hz with a wavelength of 2.9 meters. If the wavelength is shortened by 0.725 meters, what is its new frequency?
239 Hz
440 Hz
425 Hz
1276 Hz
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Question 4
A fundamental fixed-fixed standing wave is generated along a 1.4-meter string when its frequency is 319 Hz. What would be the frequency of a 3rd harmonic wave generated along this same string?
957 Hz
893 Hz
106 Hz
479 Hz
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Question 5
The speed of sound inside a 0.57-meter long open-closed tube (fixed-free) is 348.4 m/sec.What are its first three resonate frequencies?
153 Hz, 306 Hz, 458 Hz
306 Hz, 917 Hz, 1528 Hz
153 Hz, 458 Hz, 764 Hz
306 Hz, 611 Hz, 917 Hz
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Question 6
If the tube in
Question 5
was now opened on both ends (free-free), what would be its new first three resonate frequencies?
306 Hz, 611 Hz, 917 Hz
306 Hz, 917 Hz, 1528 Hz
153 Hz, 306 Hz, 458 Hz
153 Hz, 458 Hz, 764 Hz
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Question 7
The lowest frequency that a conch shell is able to produce is 306 Hz, if the resonating dimension is 0.285 meters and the wave speed is 348.4 m/s, what type of standing wave is being created?
cannot be determined
free-free
fixed-free
fixed-fixed
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Question 8
What is the speed of sound in a chamber (fixed-free) that is 2.9 meters deep if sound is resonating at 319 Hz?
463 m/sec
694 m/sec
925 m/sec
231 m/sec
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William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton