If velocity of sound in a gas is $360\, m/s$ and the distance between a compression and the nearest rarefaction is $1m$, then the frequency of sound is ..... $Hz$
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b) Distance between a compression and the nearest rarefaction is
$\frac{\lambda }{2} = 1m\,.$ Hence $n = \frac{v}{\lambda } = \frac{{360}}{2} = 180\,Hz$.
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