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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