what is refractive index
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In optics, the refractive index of a material is a dimensionless number that describes how fast light travels through the material. It is defined as n={\frac {c}{v}}, where c is the speed of light in vacuum and v is the phase velocity of light in the medium.
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Refractive index is defined as
Refractive index is defined asThe ratio of the speed of light in a vacuum to its speed in a specific medium.
Refractive index is defined asThe ratio of the speed of light in a vacuum to its speed in a specific medium.Refractive index is also referred to as refraction index or index of refraction. The speed of light in a medium depends on the properties of the medium. In electromagnetic waves, the speed is dependent on the optical density of the medium. Optical density is the tendency of the atoms in a material to restore the absorbed electromagnetic energy. The more optically dense material is, the slower the speed of light.
One such indicator of the optical density of a medium is the refractive index.
Where,
Where,n is the refractive index
Where,n is the refractive indexc is the velocity of light in a vacuum ( 3 × 108 m/s)
Where,n is the refractive indexc is the velocity of light in a vacuum ( 3 × 108 m/s)v is the velocity of light in a substance
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