For a transparent medium relative permeability and permittivity _ r and _ r are 1.0 and 1.44 respectively. The velocity of light in this medium would be

Step-by-step solution

The speed of any electromagnetic wave (EM) like light in any medium of permeability, and permittivity, is given by v = 1 Also, = ₀ _r and = ₀ _r where, ₀ and ₀ are permeability and permittivity in free space and _ r and _ r are relative permeability and relative permittivity of medium respectively. Here, _ r =1.0 _ r =1.44 aligned v & = 1 _ r _ r ₀ ₀ = c _ r _ r [ c = 1 ₀ ₀ ] & = 3 10^8 1 1.44 & =2.5 10^8 ~ms ⁻¹ aligned