Wave on String

A steel wire with mass per unit length $7.0 \times 10^{-3}$ kg

$m^{-1}$ is under tension of 70 N. The speed of

transverse waves in the wire will be:

100 m/s

$200 \pi \mathrm{m} / \mathrm{s}$

10 m/s

50 m/s0