If electric permittivity and magnetic permeability of the medium are respectively ‘ε’ and ‘μ’, then the velocity (Cm) of the electromagnetic wave in the medium is given by:

If electric permittivity and magnetic permeability of the medium are r

1.	If electric permittivity and magnetic permeability of the medium are respectively ‘ε’ and ‘μ’, then the velocity (Cm) of the electromagnetic wave in the medium is given by:
A.	m = 1/εμ
B.	m = 1/√8 μ
C.	m = 5/√εμ
D.	one of these
Answer» C. m = 5/√εμ

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If electric permittivity and magnetic permeability of the medium are respectively ‘ε’ and ‘μ’, then the velocity (Cm) of the electromagnetic wave in the medium is given by:

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