Question
(a) Students in a physics lab are asked to find the length of an air column in a tube closed at one end that has a fundamental frequency of 256 Hz. They hold the tube vertically and fill it with water to the top, then lower the water while a 256-Hz tuning fork is rung and listen for the first resonance. What is the air temperature if the resonance occurs for a length of 0.336 m? (b) At what length will they observe the second resonance (first overtone)?
1. $22^\circ\textrm{C}$
2. The next resonance occurs at $1.01 \textrm{ m}$. This is not an overtone, but rather a different resonant length for the same frequency. Overtones have higher frequencies.
Solution Video