Physics

# The dimensions of $\frac{1}{{{\mu _0}{ \in _0}}}$ is (where symbols have their usual menaing)

$\left[ {{L^2}{T^{ - 2}}} \right]$

##### SOLUTION
Velocity of light in vacuum is ${\frac{1}{{\sqrt {\left( {{\mu _0}{ \in _0}} \right)} }}}$
$\left[ {L{T^{ - 1}}} \right] = \left[ {\frac{1}{{\sqrt {\left( {{\mu _0}{ \in _0}} \right)} }}} \right]$
$\left[ {{L^2}{T^{ - 2}}} \right] = \left[ {\frac{1}{{\left( {{\mu _0}{ \in _0}} \right)}}} \right]$
Hence,
option $(A)$ is correct answer.

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Single Correct Medium Published on 18th 08, 2020
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