The critical angle of a medium for a specific wavelength if the medium has relative permittivity 3 and relative permeability `(4)/(3)` for this wavelength will be .....

The critical angle for a medium is 60^(@) . The refractive index of the medium is

Write the formula for the velocity of light in a material medium of relative permitivity in_r and relative magnetic permeability mu_r .

An electromagnetic wave of frequency 5 GHz, is travelling in a medium whose relative electric permittivity and relative magnetic permeability both are 2. Its velocity in this medium is _______ xx 10^7 m//s