If an optical medium possesses a relative permeability of $\frac{10}{π}$ and relative permittivity of $\frac{1}{0.0885}$ , then the velocity of light is greater in vacuum than that in this medium by times.
$(μ_{0} = 4 π \times 10^{- 7} H / m, ϵ_{0} = 8.85 \times 10^{- 12} F / m)$ , c = 3 $\times$ $10^{8} m / s$ )

Question

If an optical medium possesses a relative permeability of

\frac{10}{π}

and relative permittivity of

\frac{1}{0.0885}

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

(μ_{0} = 4 π \times 10^{- 7} H / m, ϵ_{0} = 8.85 \times 10^{- 12} F / m)

, c = 3

\times

10^{8} m / s

)

Accepted Answer

Correct answer: 6. (6) Since velocity of light in terms of \&E is V= 1 ϵ= 1 _0 _r 1 ϵ_0ϵ_r = 1 _rϵ_r 1 _0ϵ_0 = C _rϵ_r= C 10 10.0885 = C 36= C6 V= C6 C=6V Velocity of light in vacuum is greater by 6 times the velocity of light in medium Answer is 6

Solution

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