If the ratio of relative permeability and relative permittivity of a uniform medium is 1: 4. The ratio of the magnitudes of electric field intensity (E) to the magnetic field intensity (H) of an EM wave propagating in that medium is (Given that _0 _0 =120 )

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Correct answer: C. 60 : 1

_r E_r = 1 4 E H = E B =v = 1 = = _0 _r _0 _r = _0 _0 _r _r =120 ( 1 2 ) = 60 1

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