Practice Problems
Wave Fundamentals
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Question 1
A sound wave has a frequency of 368 Hz and travels in air at a speed of 347.8 m/sec. How far apart are any two adjacent wave compressions?
1.89 meters
7.16 meters
0.95 meters
1.06 meters
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Question 2
A fisherman notices that wave crests pass the bow of his anchored boat every 5 seconds. He measures the distance between two wave crests to be 7.3 meters. How fast are the waves traveling?
1.46 m/sec
2.92 m/sec
36.5 m/sec
18.3 m/sec
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Question 3
A wave has a speed of 280 m/sec and a wavelength of 7.3 meters. What is this wave's period?
3.84 x 10
^{1}
seconds
2.73 x 10
^{2}
seconds
2.61 x 10
^{-2}
seconds
2.87 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 0.28 seconds. What is the wave's frequency?
1.79 x 10
^{0}
Hz
3.57 x 10
^{0}
Hz
1.12 x 10
^{0}
Hz
8.93 x 10
^{-1}
Hz
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Question 5
If the wavelength is 1.84 meters in
Question 4
, that how fast does the wave energy travel along the string?
3.29 x 10
^{0}
m/sec
6.57 x 10
^{0}
m/sec
1.64 x 10
^{0}
m/sec
2.06 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 7.43 x 10
^{14}
Hz. What is the approximate wavelength of the light?
4.04 x 10
^{-7}
meters
1.35 x 10
^{-15}
meters
2.02 x 10
^{-7}
meters
2.48 x 10
^{6}
meters
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William A. Hilburn
All rights reserved.
Application Programmer
Mark Acton