If an optical medium possesses a relative permeability of 10/(π) and relative permittivity of 1/0.0885, then the velocity of light is greater in vacuum than that in this medium by _ _ _ times. (μ₀ = 4π×10⁻⁷ H/m, ε₀ = 8.85×10⁻¹² F/m, c = 3×10⁸ m/s)

Electromagnetic Waves: JEE Main 2025 Physics question

JEE Main 2025 · 4 Apr, Evening shift · Q46

JEE Main 20254 Apr, Evening shiftPhysicsMediumElectromagnetic Waves120× since 2002

If an optical medium possesses a relative permeability of

\frac{10}{\pi}

and relative permittivity of

\frac{1}{0.0885}

, then the velocity of light is greater in vacuum than that in this medium by ______ times. (

\mu_0 = 4\pi\times10^{-7}

H/m,

\epsilon_0 = 8.85\times10^{-12}

F/m,

c = 3\times10^8

m/s)

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2025 Electromagnetic Waves Question with Solution (4 Apr Evening shift, Q46) | JEE Arc