The velocity of electromagnetic radiation in a medium of permittivity ε 0 and permeability μ 0 is given by (a) (1)/(√(μ₀ ε₀)) (b) √((μ₀)/(ε₀)) (c) √((ε₀)/(μ₀)) (d) √(μ₀ ε₀)

Answer: (a). From Maxwell's equations, EM wave speed v = (1)/(√(με)). With μ₀ and ε₀: v = (1)/(√(μ₀ε₀)). So the answer is (a).

The velocity of electromagnetic radiation in a medium of permittivity… | NEET 2008 (AIPMT)

Q26NEET 2008 · AIPMTEasy

Speed of EM Waves in a Medium

The velocity of electromagnetic radiation in a medium of permittivity $\varepsilon$ 0 and permeability $\mu$ 0 is given by

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Answer: (a)

From Maxwell's equations, EM wave speed $v = \dfrac{1}{\sqrt{\mu\varepsilon}}$ .
With $\mu_0$ and $\varepsilon_0$ : $v = \dfrac{1}{\sqrt{\mu_0\varepsilon_0}}$ .
So the answer is (a).