Dimensions of strain are
$ML{T^{ - 1}}$
$M{L^2}{T^{ - 1}}$
$ML{T^{ - 2}}$
${M^0}{L^0}{T^0}$
The physical quantity $'$Energy Density$'$ has same dimensional formula as
Dimensions of $\frac{1}{{{\mu _0}{\varepsilon _0}}}$, where symbols have their usual meaning, are
Write dimensional formula and dimensional equation of density.
If $A$ and $B$ are two physical quantities having different dimensions then which of the following can't denote a physical quantity?
The dimensions of couple are