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A low sounding note has a frequency of 40 HZ and a speed in the air of 340 m/s How long in that wave?

1 Answer

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Given,

The frequency of the sound, f=40 Hz

The speed of the sound in the air, c=340 m/s

The speed of a wave in a medium is given by the product of the frequency and the wavelength of the wave.

Thus the speed of the sound with the given frequency is calculated using the formula,


c=\lambda f

Where λ is the wavelength of the wave.

On rearranging the above equation,


\lambda=(c)/(f)

On substituting the known values,


\begin{gathered} \lambda=(340)/(40) \\ =8.5\text{ m} \end{gathered}

Thus the length of the wave or the wavelength of the given wave is 8.5 m

User Nino Amisulashvili
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