If relative permittivity and relative permeability of a medium are 3 and `4/3` respectively. the critical angle for this medium is.

The relative permittivity and relative permeability of a medium are 3 and (4)/(3) respectively, the critical angle for this medium is

What is the relative permeability of a medium ?

If the relative permitivity and relative permeability of a medium are 2 and 1.28 respectively, then refractive index of that material is:

If the relative permitivity and relative permeability of a medium are 2 and 1.28 respectively, then refractive index of that material is:

If the relative permeability and relative permitivitty of the medium is 1.0 and 2.25, respectively. Find the speed of the electromagnetic wave in this medium.