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The velocity of electromagnetic radiatio...

The velocity of electromagnetic radiation in a medium of permittivity `epsilon_0 ` and permeability `mu_0` is given by:

A

`sqrt(epsilon_0/mu_0)`

B

`sqrt(mu_0epsilon_0)`

C

`1/(sqrt(mu_0epsilon_0))`

D

`sqrt(mu_0/epsilon_0)`

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