The frequency of a source is \( 20 \mathrm{kHz} \). The frequencies of the sound waves produced ...

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The frequency of a source is \( 20 \mathrm{kHz} \). The frequencies of the sound waves produced
W by it in water and air will:
a. be the same as that of the source.
b. depend upon the velocity of the waves in these media.
c. depend upon the wavelength of the waves in these media.
d. depend on the density of the media.
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