Wavelength
The wavelength of a wave traveling in a medium is the distance in the medium spanned by one repetition of the wave motion. The wavelength is the wave velocity divided by the frequency of the waves. The velocity of wave motion is usually constant in a medium, and the wavelength thus depends only on the frequency of the waves. The speed of a vibration compression wave in steel is very fast, about 17 times as fast as the speed of sound in air, and this means the wavelengths are extremely short.
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