The velocity of electromagnetic radiation in a medium of permittivity _0 and permeability μ_0 is given by

Correct answer: C. 1 μ_0 _0 Velocity of electromagnetic radiation is the velocity of light (c), ie, c= 1 μ_0 _0 where μ_0 is the permeability and _0 is the permittivity of free space.

NEET 2008

Exam: NEET
Year: 2008
Subject: Physics
Chapter: Electromagnetic Waves

NEET 2008 · Physics · Electromagnetic Waves

The velocity of electromagnetic radiation in a medium of...

The velocity of electromagnetic radiation in a medium of permittivity

\varepsilon_0

and permeability

\mu_0

is given by

Options

A $\sqrt{\frac{\varepsilon_0}{\mu_0}}$
B $\sqrt{\mu_0 \varepsilon_0}$
C $\frac{1}{\sqrt{\mu_0 \varepsilon_0}}$
D $\sqrt{\frac{\mu_0}{\varepsilon_0}}$

Correct answer

C. $\frac{1}{\sqrt{\mu_0 \varepsilon_0}}$

Step-by-step solution

Velocity of electromagnetic radiation is the velocity of light (c), ie, c=

\frac{1}{\sqrt{\mu_0 \varepsilon_0}}

where

\mu_0

is the permeability and

\varepsilon_0

is the permittivity of free space.

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