Answer:[tex]\lambda =1.304\times 10^4\ m[/tex]
Explanation:
Given
frequency of wave [tex]\nu =23\ kHz[/tex]
We know velocity is given by
[tex]v=\nu \times \lambda [/tex]
where [tex]\lambda [/tex]=wavelength
[tex]\lambda =\frac{velocity}{\nu }[/tex]
[tex]\lambda =\frac{3\times 10^8}{23\times 10^3}[/tex]
[tex]\lambda =1.304\times 10^4\ m[/tex]
