MHT CET · Physics · Electromagnetic Waves
The velocity of electromagnetic radiation in a medium of permittivity \(\varepsilon_{0}\) and permeability \(\mu_{0}\) is given by
- A \(\sqrt{\frac{\varepsilon_{0}}{\mu_{0}}}\)
- B \(\sqrt{\mu_{0} \varepsilon_{0}}\)
- C \(\frac{1}{\sqrt{\mu_{0} \varepsilon_{0}}}\)
- D \(\sqrt{\frac{\mu_{0}}{\varepsilon_{0}}}\)
Answer & Solution
Correct Answer
(C) \(\frac{1}{\sqrt{\mu_{0} \varepsilon_{0}}}\)
Step-by-step Solution
Detailed explanation
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.
\(
c=\frac{1}{\sqrt{\mu_{0} \varepsilon_{0}}}
\)
where \(\mu_{0}\) is the permeability and \(\varepsilon_{0}\) is the permittivity of free space.
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