When a weight$$W$$is hanging from a light vertical string, the speed of pulses on the string is$$V$.$ If a second weight$$W$$is added without stretching the string, the speed of pulses on this string will now become

Question $3$ options:

$1\mathrm{.}414$V

$0\mathrm{.}7071$V

V

$0\mathrm{.}5$V

$2$V