AP Physics 1 Question 457: Answer and Explanation

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Question: 457

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

Explanation:

A

The frequency of a standing wave in an open tube is given by the following equation:

The frequency of the third harmonic is