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8. Compute the velocity of light in Calcium
Fluoride (CaF₂) which has Caielectric constant
of 2.056 at frequencies within visible range
range
and magnetic susceptibility of -1-43 x 10-5.0
permeability of free space (Mo) = 4πT X10-7 H/m
and permittivity of free
space = 8.85 ×10 ¹2 =F/on

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