Audio frequency range of a human ear is 20Hz - 20000 Hz. Express the range in terms of time period ? Answer needed urgently. Pl. help. Thanks ! S.Ramya ...?

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22-11-2016
Physics

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Audio frequency range of a human ear is 20Hz - 20000 Hz. Express the range in terms of time period ? Answer needed urgently. Pl. help. Thanks ! S.Ramya ...?

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Аноним Аноним · Answer 1 · 2016-11-23T15:10:38+01:00

Using the term c in this case is a little confusing. It is more generic to use a general velocity, v. That way, in this case, we know to use the speed of sound.

wavelength*frequency=v

wavelength_20Hz = (345 m/s)/(1/20s)

wavelength_20kHz = (345 m/s)/(1/20000s)

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