Speed of EM Wave in Free Space – Rankers Physics
Topic: Electromagnetic Waves
Subtopic: Properties of EM Waves

Speed of EM Wave in Free Space

Speed of EM wave in free space is given by (where symbols have their usual meaning)
\( c = \frac{\varepsilon_0}{\mu_0} \)
\( c = \sqrt{\mu_0 \varepsilon_0} \)
\( c = \frac{1}{\sqrt{\mu_0 \varepsilon_0}} \)
\( c = \sqrt{\frac{\mu_0}{\varepsilon_0}} \)

Solution:

From Maxwell's electromagnetic theory, the speed of light \( c \) in vacuum is determined by the electric permittivity \( \varepsilon_0 \) and magnetic permeability \( \mu_0 \) of free space through the relation \( c = \frac{1}{\sqrt{\mu_0 \varepsilon_0}} \).

Leave a Reply

Your email address will not be published. Required fields are marked *