Electromagnetic Waves - Result Question 13

13. The velocity of electromagnetic radiation in a medium of permittivity $\varepsilon_0$ and permeability $\mu_0$ is given by

[2008]

(a) $\sqrt{\frac{\epsilon_0}{\mu_0}}$

(b) $\sqrt{\mu_0 \in_0}$

(c) $\frac{1}{\sqrt{\mu_0 \in_0}}$

(d) $\sqrt{\frac{\mu_0}{\epsilon_0}}$

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Answer:

Correct Answer: 13. (c)

Solution:

  1. (c) The velocity of electromagnetic radiation in a medium of permittivity $\epsilon_0$ and permeability $\mu_0$ is is equal to $\frac{1}{\sqrt{m_0 \hatI_0}}$.