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Q.

The refractive index of a medium is 1.5. If magnetic permeability of the medium is 5 x10-7 (tesla - metre/ampere) then relative permittivity of the medium is approximately

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a

6

b

12

c

10

d

9

answer is A.

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Detailed Solution

Refractive index n=μμ0εr⇒εr=(1.5)2×4π×10−75×10−7≈6
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