Practice Practice Problems (8) - Non-Dispersive Transverse and Longitudinal Waves in 1D & Introduction to Dispersion

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Lesson 8Non-Dispersive Transverse and Longitudinal Waves in 1D & Introduction to Dispersion

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9 questions

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6 sample questions

Question 1.
What is a standing wave?
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Think about how waves can cancel each other at certain points.
Question 2.
What happens when a wave hits a fixed boundary?
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Consider the direction of displacement at fixed ends.
3Question 3.
What is a standing wave?
- A wave that travels indefinitely
- A wave that remains in a fixed position
- A wave that only travels in one direction
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Think about how waves can create stationary patterns.
4Question 4.
True or False: The fundamental frequency is the highest frequency at which a string can vibrate.
- True
- False
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Recall the definition of fundamental frequency.
Question 5.
A string fixed at both ends vibrates at its second eigenfrequency. If its length is 2 m and wave speed is 400 m/s, calculate the second eigenfrequency.
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Follow the eigenfrequency formula closely.
Question 6.
You have an open-closed pipe with a length of 1.5 m. If the speed of sound is 340 m/s, find the fundamental frequency and the first overtone.
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Use n values appropriate for the harmonic you are calculating.

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