AP Physics 1 Question 457: Answer and Explanation
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5. What is the frequency of the third harmonic standing wave in an open tube with a length of 0.5 m? The speed of sound in the tube is 343 m/s.
- A. 514.5 Hz
- B. 1029 Hz
- C. 2058 Hz
- D. 4116 Hz
Correct Answer: A
The frequency of a standing wave in an open tube is given by the following equation:
The frequency of the third harmonic is