A wave on a string has a speed $*$

$10$ points

of $v=6\frac{m}{s}$ under a tension of $40$ N $.$ What is the new speed, $v^{\text{'}},$ if the tension is increased to $160$ N$?$

$v^{\text{'}}=12\frac{m}{s}$

$v^{\text{'}}=24\frac{m}{s}$

$v^{\text{'}}=3\frac{m}{s}$

$v^{\text{'}}=1\mathrm{.}5\frac{m}{s}$