The fundamental frequency of a sonometer wire is $n$. If the tension is increased $3$ times,the length is increased $3$ times,and the diameter is increased $2$ times,what will be the new frequency?

  • A
    $\sqrt{\frac{3}{2}} n$
  • B
    $\frac{\sqrt{3}}{2} n$
  • C
    $\frac{n}{2 \sqrt{3}}$
  • D
    $2 \sqrt{3} n$

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