Terra504 Terra504
  • 09-07-2014
  • Physics
Answered

what is refractive index?

Answer :

AL2006
AL2006 AL2006
  • 09-07-2014
The refractive index of a substance is the ratio . . .

           (speed of light in vacuum) divided by (speed of light in the substance) .


So the speed of light in a substance is

           (299,792,458 meters per sec) divided by (the refractive index of the substance).
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