If μ0 be the permeability and k0 , the dielectric constant of a medium, its refractive index is given by If μ0 be the permeability and k0 its refractive index is given by the dielectric constant of a medium June 4, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 25 - Electromagnetic Waves , Facebook Messenger WhatsApp Share this:TwitterFacebook Related