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RE-NEET2024Physics-Electromagnetic Waves

RE-NEET 2024 Physics Wave Propagation MCQ Question

Type: MCQ-conceptual-Medium-Class 12

If the ratio of relative permeability and relative permittivity of a uniform medium is 1 : 4. The ratio of the magnitudes of electric field intensity (E) to the magnetic field intensity (H) of an EM wave propagating in that medium is

A

30π : 1

B

1 : 120π

C

60π : 1

D

120π : 1

Correct Answer

Option C

Detailed Explanation

The ratio E/H = η = √(μ₀/ε₀) = 120π. Given μᵣ/εᵣ = 1/4, η = 120π/√4 = 60π.

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