The velocity of electromagnetic radiation in a medium of permittivity _0 and permeability _0 is given by

NEET 2008 Physics question

The velocity of electromagnetic radiation in a medium of permittivity and permeability is given by

Answer: (4)

From Maxwell's equations, the speed of an electromagnetic wave in a medium of permittivity and permeability is (in free space this equals ),

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Question ID VK-089955