What is refractive and refraction index

1.	What is refractive and refraction index
Answer» Refractive Index:The extent of bending of light rays entering from one medium to another is known as\xa0“Refractive Index”. It is denoted by the letter ‘n’. And can be represented as :n = c/vWhere c = velocity/speed of light of a certain wavelength in the air and v = velocity of light in any medium.\tlaw of refraction also known as the\xa0“Snell’s Law”.Snell’s LawIt gives the amount of bending of light rays. It determines the relationship between the angle of incidence, the angle of refraction and relative indices of given pair of media. It is defined as the :“Ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant for the light of given color and for the given pair of media”.\xa0

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