Practice Problems
Assorted Resonance
omit
Question 1
What is the wave speed of a wave traveling through a long spring if its frequency is 13 Hz and its wavelength is 1.8 m.
14.8 m/sec
23.4 m/sec
7.22 m/sec
0.14 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?
1.80 meters
11.7 meters
0.90 meters
3.60 meters
omit
Question 3
A string vibrates at 411 Hz with a wavelength of 1.8 meters. If the wavelength is shortened by 0.45 meters, what is its new frequency?
548 Hz
308 Hz
913 Hz
1644 Hz
omit
Question 4
A fundamental fixed-fixed standing wave is generated along a 1.3-meter string when its frequency is 411 Hz. What would be the frequency of a 3rd harmonic wave generated along this same string?
617 Hz
1233 Hz
1069 Hz
137 Hz
omit
Question 5
The speed of sound inside a 0.69-meter long open-closed tube (fixed-free) is 341.8 m/sec.What are its first three resonate frequencies?
248 Hz, 743 Hz, 1238 Hz
124 Hz, 248 Hz, 372 Hz
248 Hz, 495 Hz, 743 Hz
124 Hz, 372 Hz, 619 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?
124 Hz, 248 Hz, 372 Hz
248 Hz, 743 Hz, 1238 Hz
124 Hz, 372 Hz, 619 Hz
248 Hz, 495 Hz, 743 Hz
omit
Question 7
The lowest frequency that a conch shell is able to produce is 248 Hz, if the resonating dimension is 0.345 meters and the wave speed is 341.8 m/s, what type of standing wave is being created?
fixed-free
fixed-fixed
cannot be determined
free-free
omit
Question 8
What is the speed of sound in a chamber (fixed-free) that is 1.8 meters deep if sound is resonating at 411 Hz?
370 m/sec
555 m/sec
740 m/sec
185 m/sec
Copyright © 2007-2017
William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton