Determine the length of the sound wave that propagates in steel if the vibration frequency is 4 kHz and
| September 20, 2021 | education
Determine the length of the sound wave that propagates in steel if the vibration frequency is 4 kHz and the speed of sound is 5 km / s.
v = 4 kHz = 4000 Hz.
V = 5 km / s = 5000 m / s.
λ -?
The speed of propagation of the wave V in the medium is determined by the formula: V = v * λ, where v is the frequency of the wave, λ is the length of the wave.
Let us express the length of the sound wave: λ = V / v.
λ = 5000 m / s / 4000 Hz = 1.25 m.
Answer: the length of the sound wave is λ = 1.25 m.
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