$A$ steel wire has a length of $12.0 \;m$ and a mass of $2.10 \;kg$. What should be the tension in the wire so that the speed of a transverse wave on the wire equals the speed of sound in dry air at $20\,^{\circ}C = 343 \;m s^{-1}$?
- A$9.5 \times 10^{4} \;N$
- B$2.06 \times 10^{4} \;N$
- C$5.12 \times 10^{3} \;N$
- D$4.8 \times 10^{5} \;N$
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