Refractive index of glass for red and violet colours are 1.50 and 1.60, respectively. Find: (a) The refractive index for yellow colour, approximately. (b) Dispersive power of the medium. approximately. (b) Dispersive power of the medium. Refractive index of glass for red and violet colours are 1.50 and 1.60 respectively. Find: (a) The refractive index [...]