Practice Problems
Assorted Resonance
omit
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 2.3 m.
5.22 m/sec
14.3 m/sec
27.6 m/sec
0.19 m/sec
omit
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?
4.60 meters
13.8 meters
1.15 meters
2.30 meters
omit
Question 3
A string vibrates at 476 Hz with a wavelength of 2.3 meters. If the wavelength is shortened by 0.575 meters, what is its new frequency?
1904 Hz
635 Hz
357 Hz
828 Hz
omit
Question 4
A fundamental fixed-fixed standing wave is generated along a 1.2-meter string when its frequency is 476 Hz. What would be the frequency of a 3rd harmonic wave generated along this same string?
1428 Hz
1142 Hz
714 Hz
159 Hz
omit
Question 5
The speed of sound inside a 0.64-meter long open-closed tube (fixed-free) is 344.8 m/sec.What are its first three resonate frequencies?
135 Hz, 404 Hz, 673 Hz
269 Hz, 539 Hz, 808 Hz
135 Hz, 269 Hz, 404 Hz
269 Hz, 808 Hz, 1347 Hz
omit
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?
135 Hz, 269 Hz, 404 Hz
269 Hz, 808 Hz, 1347 Hz
269 Hz, 539 Hz, 808 Hz
135 Hz, 404 Hz, 673 Hz
omit
Question 7
The lowest frequency that a conch shell is able to produce is 269 Hz, if the resonating dimension is 0.32 meters and the wave speed is 344.8 m/s, what type of standing wave is being created?
fixed-fixed
cannot be determined
free-free
fixed-free
omit
Question 8
What is the speed of sound in a chamber (fixed-free) that is 2.3 meters deep if sound is resonating at 476 Hz?
821 m/sec
1095 m/sec
547 m/sec
274 m/sec
Copyright © 2007-2019
William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton