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

Question

Question

Answer 1

CONCEPT:

The velocity of the light in the medium is written as;

Here we have is the permeability and is permittivity.

CALCULATION:

Given: Relative permeability, μ_r = 1.0

and relative permittivity, ϵ_r = 1.44

The velocity of light in the medium is written as;

----(1)

and

Now, using equation (1) we have;

----(2)

As we know that F/m and

H/m

Now, by putting the given values we have;

m/s

Hence, option 3) is the correct answer.

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