The speed of an electromagnetic wave in a medium of permittivity ε₀ and permeability μ₀ is given by which expression?
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Question

The speed of an electromagnetic wave in a medium of permittivity ε₀ and permeability μ₀ is given by which expression?

G1 Physics · Accepted Answer

Step 1: In a medium with permeability μ and permittivity ε, electromagnetic wave speed is v = 1/√(με). Step 2: Substituting the given μ₀ and ε₀ gives v = 1/√(μ₀ε₀) in free space. Step 3: Therefore option C. Final answer: (C) 1/√(μ₀ε₀).