Question

Human fingers are very sensitive, detecting vibrations with amplitudes as low as 2.0 × 10–5 m....

Human fingers are very sensitive, detecting vibrations with amplitudes as low as 2.0 × 10–5 m. Consider a sound wave with a wavelength exactly 1000 times greater than the lowest amplitude detectable by fingers. What is this wave’s frequency?

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Answer #1

we know that

wavelength = 1000* lowest frequency

therefore

the relation between speed wavelength and frequency is

where, v = speed of sound in air = 343 m/s

therfore

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