A plane electromagnetic wave travels in a medium of relative permeability 1.61 and relative permittivity 6.44. If magnitude of magnetic intensity is…

A plane electromagnetic wave travels in a medium of relative permeability $\displaystyle 1.61$ and relative permittivity 6.44. If magnitude of magnetic intensity is $\displaystyle 4.5 \times 10^{-2} \mathrm{Am}^{-1}$ at a point, what will be the approximate magnitude of electric field intensity at that point ? (Given : Permeability of free space $\displaystyle \mu_0=4 \pi \times 10^{-7} \mathrm{NA}^{-2}$, speed of light in vacuum $\displaystyle \mathrm{c}=3 \times 10^8 \mathrm{~ms}^{-1}$ )