Question

If velocity of an electromagnetic wave in a medium
is 3 x10^8 m/s then find refractive index of medium.
(1) 1
(3) 0.5
(4) 0.25
(2) 2​

Answer 1

Answer:

(1) 1

Explanation:

Refractive index=c/v where v is the velocity in the medium. So here it is (3.10^8)/3.10^8. =1