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In medium with relative permittivity 1 and relative permeability 4, the speed of light is(a) 1.5 x 108 m/s(b) 4.5 x 108 m/s(c) 5.5 x 108 m/s(d) 3.5 x 108 m/s |
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Answer» (a) 1.5 x 108 m/s μ = √∈r μr = √1 x 4 = 2 ⇒ v = c/μ = 3 x 108 /2 = 1.5 x 108 m/s |
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