The speed 'c' of electromagnetic wave in vacuum is equal to? (where μ – McqOptions

MCQOPTIONS

1.	The speed 'c' of electromagnetic wave in vacuum is equal to? (where μo and єo are free space permeability and permittivity constants)
A.	1/√(μo єo)
B.	1/(μoєo)
C.	μoєo
D.	(μoєo)2
Answer» B. 1/(μoєo)

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