When light propagates through a material medium of relative permittivity ϵ r and relative permeability μ r , the velocity of light, v is given by : ( c - velocity of light in vacuum)

Question

Aicharya · Accepted Answer

We know, c = 1 μ 0 ε 0 for any medium v = 1 μ ε but μ = μ r μ 0 and ε = ε r ε 0 ∴ v = 1 μ r μ 0 ε r ε 0 = 1 μ r ε r × 1 μ 0 ε 0 = c μ r ε r

When light propagates through a material medium of relative permittivity ϵ r and relative permeability μ r ,…

Solution