What happens, when we multiply a vector by (-2) ?

Answer

C

Explanation

As we know that formula of velocity is
`v=(1)/sqrt(mu_(0)epsilon_(0))rArr v^(2)=1/(mu_(0)epsilon_(0))=[LT^(-1)]^(2)`
`:. (1)/(mu_(0)epsilon_(0))=[L^(2)T^(-2)]`