CBSE · Class 12 · Physics · Electromagnetic WavesThe speed of electromagnetic waves in vacuum is given by the relation:
Step-by-Step Solution
The speed of light/electromagnetic waves in a vacuum is related to the permittivity ($\varepsilon_0$) and permeability ($\mu_0$) of free space by the formula $c = \frac{1}{\sqrt{\mu_0 \varepsilon_0}}.$
Detailed Options Breakdown
Option : $c = \sqrt{\mu_0 \varepsilon_0}$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electromagnetic Waves.
Option 1: $c = \frac{1}{\sqrt{\mu_0 \varepsilon_0}}$ (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: $c = \frac{\mu_0}{\varepsilon_0}$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electromagnetic Waves.
Option 3: $c = \sqrt{\frac{\mu_0}{\varepsilon_0}}$
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electromagnetic Waves.
💡 Study Guide: This question tests core syllabus concepts from Electromagnetic Waves. For formulas, key summaries, and mock exam reference guides, read the full Electromagnetic Waves Revision Notes.