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 2.4 m.
31.2 m/sec
5.42 m/sec
15.4 m/sec
0.18 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?
2.40 meters
15.6 meters
4.80 meters
1.20 meters
omit
Question 3
A string vibrates at 284 Hz with a wavelength of 2.4 meters. If the wavelength is shortened by 0.6 meters, what is its new frequency?
379 Hz
473 Hz
1136 Hz
213 Hz
omit
Question 4
A fundamental fixed-fixed standing wave is generated along a 1.3-meter string when its frequency is 284 Hz. What would be the frequency of a 3rd harmonic wave generated along this same string?
95 Hz
852 Hz
738 Hz
426 Hz
omit
Question 5
The speed of sound inside a 0.65-meter long open-closed tube (fixed-free) is 345.4 m/sec.What are its first three resonate frequencies?
133 Hz, 399 Hz, 664 Hz
133 Hz, 266 Hz, 399 Hz
266 Hz, 797 Hz, 1328 Hz
266 Hz, 531 Hz, 797 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?
133 Hz, 266 Hz, 399 Hz
133 Hz, 399 Hz, 664 Hz
266 Hz, 531 Hz, 797 Hz
266 Hz, 797 Hz, 1328 Hz
omit
Question 7
The lowest frequency that a conch shell is able to produce is 266 Hz, if the resonating dimension is 0.325 meters and the wave speed is 345.4 m/s, what type of standing wave is being created?
fixed-fixed
fixed-free
free-free
cannot be determined
omit
Question 8
What is the speed of sound in a chamber (fixed-free) that is 2.4 meters deep if sound is resonating at 284 Hz?
682 m/sec
511 m/sec
341 m/sec
170 m/sec
Copyright © 2007-2018
William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton