Frequency of a stretched string when its length, diameter, tension or density changes

1. A.
   first
2. B.
   second
3. C.
   third
4. D.
   fourth

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1. A.
   2:1
2. B.
   3:2
3. C.
   3:4
4. D.
   1:3

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1. A.
   $\frac{1}{\alpha} - \frac{1}{\beta}$
2. B.
   $Q_2 = Q_1$
3. C.
   $Q_2 = \frac{Q_1}{2}$
4. D.
   $Q_2 = \frac{Q_1}{4}$

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1. A.
   $2n$
2. B.
   $3n$
3. C.
   $\frac{n}{4}$
4. D.
   $\frac{n}{3}$

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1. A.
   $1:2$
2. B.
   $1:4$
3. C.
   $1:6$
4. D.
   $1:8$

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1. A.
   2 n
2. B.
   $\ \frac{\sqrt{3}}{2}n$
3. C.
   $\frac{n}{2\sqrt{3}}$
4. D.
   $\sqrt{3}n$

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1. A.
   $1 : 2$
2. B.
   $1 : 4$
3. C.
   $1 : 6$
4. D.
   $1 : 8$

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1. A.
   $f \propto \dfrac{1}{LD}$
2. B.
   $f \propto \dfrac{1}{\ell\sqrt{D}}$
3. C.
   $f \propto \dfrac{1}{D^2}$
4. D.
   $f \propto \dfrac{1}{\ell D^2}$

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