If electric permittivity and magnetic permeability of the medium are respectively and , 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 and , then the velocity (Cm) of the electromagnetic wave in the medium is given by:
A.	cm = 1/
B.	cm
C.	cm
D.	none of these
Answer» C. cm

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

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