The frequency of a tuning fork is $256\, Hz$. The velocity of sound in air is $344\, ms^{-1}$. The distance travelled (in $meters$) by the sound during the time in which the tunning fork complete $32$ vibrations is
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Distance travelled by sound
$=32 \lambda=32\left[\frac{\mathrm{V}}{\mathrm{n}}\right]=32\left[\frac{344}{256}\right]=43 \mathrm{\,m}.$
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