A sound wave travels at a speed of 399, m s^{ | vedclass

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(B) Given: Speed of sound $(V) = 399\, m s^{-1}$,Wavelength $(\lambda) = 1.5\, cm = 0.015\, m$.We know the relationship between speed,frequency $(v)$,

Vedclass · Accepted Answer

Frequency is $26600\, Hz$; it is not audible.

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(B) Given: Speed of sound $(V) = 399\, m s^{-1}$,Wavelength $(\lambda) = 1.5\, cm = 0.015\, m$.We know the relationship between speed,frequency $(v)$,and wavelength $(\lambda)$ is given by the formula: $V = v 	imes \lambda$.Rearranging for frequency: $v = V / \lambda$.Substituting the values: $v = 399 / 0.015 = 26600\, Hz$.The human audible range is between $20\, Hz$ and $20,000\, Hz$.Since the calculated frequency of $26600\, Hz$ is greater than $20,000\, Hz$,it is ultrasonic and therefore not audible to the human ear.

$A$ sound wave travels at a speed of $399\, m s^{-1}$. If its wavelength is $1.5\, cm$,what is the frequency of the wave? Will it be audible?

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