Figure 54.1: Dispersion in distilled water, showing how the index of refraction varies with wavelength.where is the wavelength and constantsB 1 ,C 1 ,B 2 ,C 2 ,B 3 , andC 3 depend on the material.
For water ( 20 ıC),B 1 D0:35074,C 1 D8725:74686nm^2 ,B 2 D0:04212,C 2 D25765:38176nm^2 ,
B 3 D0:36067, andC 3 D8739:18542nm^2.