An electromagnetic wave of frequency 5 GHz, is travelling in a medium whose relative electric permittivity and relative magnetic permeability both are 2. Its velocity in this medium is × 10⁷ m s⁻¹.

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Accepted Answer

15. n = √μᵣεᵣ = (2 × 2) = 2 v = c/n = 3 × 10⁸ / 2 = 1.5 × 10⁸ m s⁻¹ = 15 × 10⁷ m s⁻¹ (the 5 GHz is not needed) → 15

An electromagnetic wave of frequency 5 GHz, is travelling in a medium whose relative electric permittivity and relative magnetic permeability both are 2. Its velocity in this medium is ________ × 10⁷ m s⁻¹.

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