Quick check from College Physics, 17.2 Speed of Sound, Frequency, and Wavelength

Speed of Sound, Frequency, and Wavelength: quick check

You observe two musical instruments that you cannot identify. One plays high-pitch sounds and the other plays low-pitch sounds. How could you determine which is which without hearing either of them play?

Answer it in your own words before you look.

Answer
Compare their sizes. High-pitch instruments are generally smaller than low-pitch instruments because they generate a smaller wavelength.

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