what is refractive index? Explaination about the formulae of refractive index

Asked by  | 31st Mar, 2008, 10:55: PM

Expert Answer:

Refractive index

The ratio of the sine of the angle of incidence to the sine of anlgle of refraction is a constant and called refractive index of that material wrt to other material

                                              sin i/sin r = constant. = 1n2

This is called refractive index of medium of 2 with respect of medium 1

This can be explaned on the basis of speed fo light which is different in different media 

sin i/sin r = v1/v2= speed in first medium/ speed in second medium

Answered by  | 22nd May, 2008, 11:55: AM

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