The following statements refer to properties of standing sound waves in tubes. O

Question

The following statements refer to properties of standing sound waves in tubes. One of the following statements is incorrect. Select it. The fundamental frequency is the same for a tube closed at both ends as for a tube open at both ends. If a tube is open at both ends, the third harmonic frequency is three times the fundamental frequency. Halving the length of the tube halves the fundamental frequency. If a tube is closed at one end and open at the other end, the second harmonic frequency is three times the fundamental frequency. If a tube is open at both ends, the sound wave at the fundamental frequency has two antinodes.

Explanation / Answer

C) is the incorrect statement.

As fundamental frequency f varies inversaly with the length of the tube (L).

So by halving the length L will double the fundamental frequency.

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