An open pipe of length $33 cm$ resonates with frequency of $100 Hz$. If the speed of sound is $330 m/s$, then this frequency is
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(c) Frequency of $p$ th harmonic
$n = \frac{{pv}}{{2l}}$ ==> $p = \frac{{2\,l\,n}}{v} = \frac{{2 \times 0.33 \times 1000}}{{330}} = 2$
$n = \frac{{pv}}{{2l}}$ ==> $p = \frac{{2\,l\,n}}{v} = \frac{{2 \times 0.33 \times 1000}}{{330}} = 2$
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