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  4. If speed of sound in air is 340 m / s and in water 1480 m / s and frequency of sound is 1000 kHz then find wavelength of water.

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Q. If speed of sound in air is $340 \,m / s$ and in water $1480\, m / s$ and frequency of sound is $1000\, kHz$ then find wavelength of water.

JIPMERJIPMER 2018

Solution:

$v=f \lambda$
$\Rightarrow \,1480=\left(1000\times10^{3}\right)\lambda$
$\Rightarrow \,\lambda=1.480\,mm$