If $n_1 , n_2$ and $n_3$ are the fundamental frequencies of three segments into which a string is divided, then the original fundamental frequency $n$ of the string is given by
If $n_1 , n_2$ and $n_3$ are the fundamental frequencies of three segments into which a string is divided, then the original fundamental frequency $n$ of the string is given by
- A
$n=n_1+n_2+n_3$
- B
$\sqrt {{n_{}}} $=$\sqrt {{n_1}} + \sqrt {{n_2}} $+$\sqrt {{n_3}} $
- C
$\frac{1}{n}$ =$\frac{1}{{{n_1}}}$ + $\frac{1}{{{n_2}}}$ +$\frac{1}{{{n_3}}}$
- D
$\frac{1}{{\sqrt {{n_{}}} }}$=$\frac{1}{{\sqrt {{n_1}} }}$+$\frac{1}{{\sqrt {{n_2}} }} + \frac{1}{{\sqrt {{n_3}} }}$
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