Practice Problems
Wave Fundamentals
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Question 1
A sound wave has a frequency of 471 Hz and travels in air at a speed of 341.8 m/sec. How far apart are any two adjacent wave compressions?
1.38 meters
0.73 meters
1.45 meters
8.13 meters
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Question 2
A fisherman notices that wave crests pass the bow of his anchored boat every 3 seconds. He measures the distance between two wave crests to be 8.1 meters. How fast are the waves traveling?
5.40 m/sec
12.1 m/sec
2.70 m/sec
24.3 m/sec
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Question 3
A wave has a speed of 180 m/sec and a wavelength of 8.1 meters. What is this wave's period?
4.5 x 10
^{-2}
seconds
1.88 x 10
^{2}
seconds
1.72 x 10
^{2}
seconds
2.22 x 10
^{1}
seconds
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Question 4
A sinusoidal wave travels along a string. The time for a particular point to move from maximum displacement to zero is 0.18 seconds. What is the wave's frequency?
7.2 x 10
^{-1}
Hz
2.78 x 10
^{0}
Hz
1.39 x 10
^{0}
Hz
5.56 x 10
^{0}
Hz
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Question 5
If the wavelength is 2.355 meters in
Question 4
, that how fast does the wave energy travel along the string?
3.27 x 10
^{0}
m/sec
1.7 x 10
^{0}
m/sec
6.54 x 10
^{0}
m/sec
1.31 x 10
^{1}
m/sec
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Question 6
Light has a speed in a vacuum of 3 x 10
^{8}
m/s. The frequency of visible light is about 6.33 x 10
^{14}
Hz. What is the approximate wavelength of the light?
1.58 x 10
^{-15}
meters
2.11 x 10
^{6}
meters
4.74 x 10
^{-7}
meters
2.37 x 10
^{-7}
meters
Copyright © 2007-2017
William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton