A $12 \,m$ long vibrating string has the speed of wave $48 \,m / s$. To what frequency it will resonate ........... $cps$
Medium
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(d)
$v=48 \,m / s , l=12 \,m , f=\frac{n v}{2 l}$
$f=2 n$ (where $n=1,2,3 \ldots$. )
Hence answer is $(d)$.
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