Appeared in: 2025 (2 sets)
The dimensions of $(\mu\varepsilon)^{-1}$, where $\varepsilon$ is permittivity and $\mu$ is permeability of a medium, are :
(A) $[\text{M}^0 \text{L}^1 \text{T}^{-1}]$
(B) $[\text{M}^0 \text{L}^2 \text{T}^{-2}]$
(C) $[\text{M}^1 \text{L}^2 \text{T}^{-2}]$
(D) $[\text{M}^1 \text{L}^{-1} \text{T}^1]$