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Definition of "Refractive Index" |
In a wave-transmission medium, the ratio between the phase velocity in free space and in the medium. / In optics the refractive index or index of refraction n of a substance optical medium is a dimensionless number that describes how light, or any other radiation, propagates through that medium. / Transfer station along coordinated routes in a multi-hub transit network. / a parameter of a medium equal to the ratio of the velocity of propagation in free space to the velocity of propagation in the medium. It is numerically equal to the square root of the product of the relative permittivity and relative permeability of the medium. |
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