$A$ small mass $m$ is suspended at the end of a wire having negligible mass,length $L$,and cross-sectional area $A$. The frequency of oscillation for the $S.H.M.$ along the vertical line is ($Y =$ Young's modulus of the wire).
- A$\frac{1}{2 \pi}\left(\frac{YA}{mL}\right)^{\frac{1}{2}}$
- B$\frac{2 \pi YA}{mL}$
- C$\frac{YA}{2 \pi m L}$
- D$2 \pi\left(\frac{YA}{mL}\right)^{\frac{1}{2}}$
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