Rankers Physics

Properties of EM Waves: Practice Problem & Solution

The velocity of electromagnetic radiation in a medium of permittivity $\epsilon_0$ and permeability $\mu_0$ is given by: (2008)
$\sqrt{\frac{\mu_0}{\epsilon_0}}$
$\sqrt{\frac{\epsilon_0}{\mu_0}}$
$\sqrt{\mu_0\epsilon_0}$
$\frac{1}{\sqrt{\mu_0\epsilon_0}}$

Solution Explained:

To solve this problem, we apply the core principles of Properties of EM Waves. Understanding the underlying formula is key to arriving at the correct answer below:

According to Maxwell's theory of electromagnetism, the speed of electromagnetic waves in free space is determined by its electric and magnetic properties and is given by the formula $c = \frac{1}{\sqrt{\mu_0\epsilon_0}}$ .

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