In the relation $y = a\cos (\omega t - kx)$, the dimensional formula for $k$ is
$[{M^0}{L^{ - 1}}{T^{ - 1}}]$
$[{M^0}L{T^{ - 1}}]$
$[{M^0}{L^{ - 1}}{T^0}]$
$[{M^0}LT]$
The physical quantity $'$Energy Density$'$ has same dimensional formula as
In the relation : $\frac{d y}{d x}=2 \omega \sin \left(\omega t+\phi_0\right)$ the dimensional formula for $\left(\omega t+\phi_0\right)$ is :
What is dimensional analysis ? Write limitation of dimensional analysis.
The dimension of $\frac{1}{{\sqrt {{\varepsilon _0}{\mu _0}} }}$ is that of
The dimensional formula of permeability of free space $\mu_0$ is