A student is experimenting with resonance tube apparatus in Physics lab to find the speed of sound at room temperature. He got first two resonating lengths of air column as $17\, cm$ and $51 \,cm$, using tuning fork of frequency $512\, Hz$. Find speed of sound at room temperature ..... $m/s$
A$348$
B$358$
C$332$
D$322$
Medium
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A$348$
a $ \frac{\lambda}{4}=\ell_{1}+\mathrm{e} $ and $ \frac{3 \lambda}{4} =\ell_{2}+\mathrm{e} \Rightarrow \lambda=2\left(\ell_{2}-\ell_{1}\right) $
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