Practice Problems
Wave Fundamentals
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Question 1
A sound wave has a frequency of 367 Hz and travels in air at a speed of 343.6 m/sec. How far apart are any two adjacent wave compressions?
0.94 meters
7.11 meters
1.07 meters
1.87 meters
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Question 2
A fisherman notices that wave crests pass the bow of his anchored boat every 6 seconds. He measures the distance between two wave crests to be 3.7 meters. How fast are the waves traveling?
22.2 m/sec
0.62 m/sec
11.1 m/sec
1.23 m/sec
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Question 3
A wave has a speed of 210 m/sec and a wavelength of 3.7 meters. What is this wave's period?
2.14 x 10
^{2}
seconds
1.76 x 10
^{-2}
seconds
5.68 x 10
^{1}
seconds
2.06 x 10
^{2}
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 0.21 seconds. What is the wave's frequency?
8.4 x 10
^{-1}
Hz
2.38 x 10
^{0}
Hz
1.19 x 10
^{0}
Hz
4.76 x 10
^{0}
Hz
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Question 5
If the wavelength is 1.835 meters in
Question 4
, that how fast does the wave energy travel along the string?
2.18 x 10
^{0}
m/sec
1.54 x 10
^{0}
m/sec
8.74 x 10
^{0}
m/sec
4.37 x 10
^{0}
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 4.48 x 10
^{14}
Hz. What is the approximate wavelength of the light?
1.49 x 10
^{6}
meters
6.7 x 10
^{-7}
meters
3.35 x 10
^{-7}
meters
2.23 x 10
^{-15}
meters
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William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton