If $E$ and $B$ denote electric and magnetic fields respectively, which of the following is dimensionless
If $E$ and $B$ denote electric and magnetic fields respectively, which of the following is dimensionless
- A
$\sqrt {{\mu _0}{\varepsilon _0}} \frac{E}{B}$
- B
$ {{\mu _0}{\varepsilon _0}} \frac{E}{B}$
- C
${\mu _0}{\varepsilon _0}{\left( {\frac{B}{E}} \right)^2}$
- D
$\frac{E}{{{\varepsilon _0}}}\frac{{{\mu _0}}}{B}$
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