Human fingers are very sensitive, detecting vibrations with amplitudes as low as 2.4 X 10^-5 m. Consider a sound wave with a wavelength exactly 1000 times greater than the lowest amplitude detectable by fingers. The speed of sound in air is 377 m/s. What is this wave’s frequency?

Aleah Booth 2022-07-17 Answered
Human fingers are very sensitive, detecting vibrations with amplitudes as low as 2.4 × 10 5 m. Consider a sound wave with a wavelength exactly 1000 times greater than the lowest amplitude detectable by fingers. The speed of sound in air is 377 m/s. What is this wave’s frequency?
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Answers (1)

tiltat9h
Answered 2022-07-18 Author has 14 answers
Wavelength = 1000 × Lowest amplitude
λ = 1000 × 2.4 × 10 5 m = 2.4 × 10 2 m
Speed, wavelength and frequency are related as
v = f λ
f = v λ = 377 m / s 2.4 × 10 2 m = 15708.3 H z

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