STANDARDPhysics-Electromagnetic Waves
STANDARD Physics Properties of Electromagnetic Waves MCQ Question
Type: MCQ-conceptual-Medium-Class 12
If E and B denote electric and magnetic fields respectively, which of the following is dimensionless?
A
E/B
B
μ₀ε₀E/B
C
μ₀ε₀(B/E)²
D
Eμ₀/ε₀B
Correct Answer
Option B
Detailed Explanation
Speed of light, C = 1/√(μ₀ε₀); Also, E/B = C. Therefore, √(μ₀ε₀)E/B is dimensionless.
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