[" Q2.A plane electromagnetic wave "E=],[100cos(6times10^(8)t+4x)" V/m propagates in a "],[" medium of dielectric constant "]

A plane electromagnetic wave E_(z) = 100 "cos" (6xx10^(8)t +4x) V/m propagating in medium of dielectric constant is

A place electromagnetic wave F_(s)=100 cos(6xx10^(8)t+4x) V//m Propagates in a medium of dielectric constant. The refractive index is

A place electromagnetic wave F_(s)=100 cos(6xx10^(8)t+4x) V//m Propagates in a medium of dielectric constant. The refractive index is

A place electromagnetic wave E_z = 100 cos(4 \times10^-7 z - 50 t) V/m propagates in a medium. Find the refractive index of the medium.

Electric field of one plane progresive electromagnetic wave is E_(Z)=100 cos (6xx10^(8)t + 4x)Vm^(-1) . Then refreactive index of medium pf propagation would be …..