derivation of refractive index

Asked by Rochika | 24th Mar, 2009, 12:11: PM

Expert Answer:

let v1 and v2 are velocities of light in medium 1 and 2 then,

n12 = v2 / v1

n21 = v1 / v2

n12 x n21 = ( v2 / v1 ) x (v1 / v2) = 1

n12 = 1 / n21

Answered by  | 24th Mar, 2009, 03:26: PM

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