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 7 Hz and its wavelength is 1.9 m.
0.27 m/sec
8.9 m/sec
13.3 m/sec
3.68 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?
0.95 meters
6.7 meters
1.90 meters
3.80 meters
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Question 3
A string vibrates at 618 Hz with a wavelength of 1.9 meters. If the wavelength is shortened by 0.475 meters, what is its new frequency?
464 Hz
2472 Hz
824 Hz
1301 Hz
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Question 4
A fundamental fixed-fixed standing wave is generated along a 0.7-meter string when its frequency is 618 Hz. What would be the frequency of a 3rd harmonic wave generated along this same string?
927 Hz
206 Hz
1854 Hz
865 Hz
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Question 5
The speed of sound inside a 0.59-meter long open-closed tube (fixed-free) is 342.4 m/sec.What are its first three resonate frequencies?
290 Hz, 580 Hz, 871 Hz
290 Hz, 871 Hz, 1451 Hz
145 Hz, 435 Hz, 725 Hz
145 Hz, 290 Hz, 435 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?
290 Hz, 871 Hz, 1451 Hz
145 Hz, 435 Hz, 725 Hz
290 Hz, 580 Hz, 871 Hz
145 Hz, 290 Hz, 435 Hz
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Question 7
The lowest frequency that a conch shell is able to produce is 290 Hz, if the resonating dimension is 0.295 meters and the wave speed is 342.4 m/s, what type of standing wave is being created?
cannot be determined
fixed-fixed
fixed-free
free-free
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Question 8
What is the speed of sound in a chamber (fixed-free) that is 1.9 meters deep if sound is resonating at 618 Hz?
881 m/sec
587 m/sec
294 m/sec
1174 m/sec
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William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton