The refractive index of a particular material is $1.67$ for blue light,$1.65$ for yellow light,and $1.63$ for red light. The dispersive power of the material is .........

The refractive index of flint glass for blue $F$ line is $1.6333$ and red $C$ line is $1.6161.$ If the refractive index for yellow $D$ line is $1.622,$ the dispersive power of the glass is

The refractive indices of red,yellow,and violet colors for a prism are $1.5140, 1.5170$,and $1.5318$ respectively. Calculate the dispersive power of this prism. For a second prism,the refractive indices for red,yellow,and violet colors are $1.6434, 1.6499$,and $1.6852$ respectively. Calculate the dispersive power of the second prism.

Mention the constituent colors of white light.

For a medium,the refractive indices for violet,red,and yellow light are $1.62$,$1.52$,and $1.55$ respectively. Calculate the dispersive power of the medium.

The Cauchy's dispersion formula is: