If ϵ0 and μ0 are the permittivity and permeability of free space and ϵ and μ are the corresponding quantities for a medium, then refractive index of the medium is: If ϵ0 and μ0 are the permittivity and permeability of free space and ϵ and μ are the corresponding quantities for a medium then refractive index of the medium is: November 8, 2020 Category: Chapter 9 - Ray Optics , MTG NEET Physics , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related