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 10 Hz and its wavelength is 2 m.
5.00 m/sec
0.20 m/sec
12.0 m/sec
20.0 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?
2.00 meters
4.00 meters
1.00 meters
10.0 meters
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Question 3
A string vibrates at 306 Hz with a wavelength of 2 meters. If the wavelength is shortened by 0.5 meters, what is its new frequency?
612 Hz
1224 Hz
230 Hz
408 Hz
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Question 4
A fundamental fixed-fixed standing wave is generated along a 1-meter string when its frequency is 306 Hz. What would be the frequency of a 3rd harmonic wave generated along this same string?
918 Hz
459 Hz
612 Hz
102 Hz
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Question 5
The speed of sound inside a 0.52-meter long open-closed tube (fixed-free) is 343 m/sec.What are its first three resonate frequencies?
330 Hz, 989 Hz, 1649 Hz
330 Hz, 660 Hz, 989 Hz
165 Hz, 495 Hz, 825 Hz
165 Hz, 330 Hz, 495 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?
165 Hz, 495 Hz, 825 Hz
330 Hz, 989 Hz, 1649 Hz
165 Hz, 330 Hz, 495 Hz
330 Hz, 660 Hz, 989 Hz
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Question 7
The lowest frequency that a conch shell is able to produce is 330 Hz, if the resonating dimension is 0.26 meters and the wave speed is 343 m/s, what type of standing wave is being created?
cannot be determined
free-free
fixed-fixed
fixed-free
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Question 8
What is the speed of sound in a chamber (fixed-free) that is 2 meters deep if sound is resonating at 306 Hz?
153 m/sec
459 m/sec
612 m/sec
306 m/sec
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William A. Hilburn
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Application Programmer
Mark Acton