1.

Dimensions of 1/(sqrt(mu_0 in_0)) are

Answer»

`[L^(-1)T]`
`L^(-2)T^(2)`
`L^(2)T^(-2)`
`LT^(-1)`

Solution :We know that SPEED of em wave is `C=(1)/(sqrt(mu_(0)epsilon_(0)))`
`:.c^(2)=(1)/(mu_(0)epsilon_(0))`
`:.`Dimensions of `(1)/(mu_(0)epsilon_(0))=[L^(2)T^(-2)]`
Hence CORRECT choice is `( c)`.


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