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Q.

For a transparent medium, relative permeability and permittivity, μr and ∈r are 1.0 and 1.44 respectively. The velocity of light in this medium would be,

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a

4.32×108 m/s

b

2.5×108 m/s

c

3×108 m/s

d

2.08×108 m/s

answer is B.

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Detailed Solution

v=1μ∈=cμr∈r =3×1081×1.44=2.5×108 m/s
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