Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Electromagnetic Waves

Question:

If an electromagnetic wave is propagation in a medium with permittivity ε and permittivity μ, then  $\sqrt{\frac{\mu}{ε}}$ is the

Options:

Intrinsic impedance of the medium

Square of the refractive index of the medium

Refractive index of the medium

Energy density of the medium

Correct Answer:

Intrinsic impedance of the medium

Explanation:

$\sqrt{\frac{\mu}{ε}}$ = has the dimensions of resistance, hence it is called the intrinsic impedance of the medium