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 12 Hz and its wavelength is 2.6 m.
14.6 m/sec
4.62 m/sec
0.22 m/sec
31.2 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?
15.6 meters
1.30 meters
2.60 meters
5.20 meters
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Question 3
A string vibrates at 351 Hz with a wavelength of 2.6 meters. If the wavelength is shortened by 0.65 meters, what is its new frequency?
1404 Hz
263 Hz
540 Hz
468 Hz
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Question 4
A fundamental fixed-fixed standing wave is generated along a 1.2-meter string when its frequency is 351 Hz. What would be the frequency of a 3rd harmonic wave generated along this same string?
527 Hz
1053 Hz
117 Hz
842 Hz
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Question 5
The speed of sound inside a 0.46-meter long open-closed tube (fixed-free) is 346.6 m/sec.What are its first three resonate frequencies?
188 Hz, 565 Hz, 942 Hz
188 Hz, 377 Hz, 565 Hz
377 Hz, 1130 Hz, 1884 Hz
377 Hz, 753 Hz, 1130 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?
188 Hz, 377 Hz, 565 Hz
377 Hz, 753 Hz, 1130 Hz
188 Hz, 565 Hz, 942 Hz
377 Hz, 1130 Hz, 1884 Hz
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Question 7
The lowest frequency that a conch shell is able to produce is 377 Hz, if the resonating dimension is 0.23 meters and the wave speed is 346.6 m/s, what type of standing wave is being created?
fixed-free
cannot be determined
fixed-fixed
free-free
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Question 8
What is the speed of sound in a chamber (fixed-free) that is 2.6 meters deep if sound is resonating at 351 Hz?
913 m/sec
456 m/sec
684 m/sec
228 m/sec
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William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton