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. <img src="/_files/images/civil-engineering/elements-of-remote-sensing/14-27-52-1.png">
• B. <img src="/_files/images/civil-engineering/elements-of-remote-sensing/14-27-52-2.png">
• C. <img src="/_files/images/civil-engineering/elements-of-remote-sensing/14-27-52-3.png">
• D. None of these