Which of the following curves gives the correct graphical representation between the refractive index $\mu$ of glass and the wavelength $\lambda$ of light?

The deviations caused in red,yellow,and violet colors for a crown glass prism are $2.84^\circ$,$3.28^\circ$,and $3.72^\circ$ respectively. The dispersive power of the prism material is:

The dispersive power is maximum for the material

Compare the dispersive powers of two prisms if one of them deviates the blue and red rays through $10^{\circ}$ and $6^{\circ}$ respectively,and the second prism through $8^{\circ}$ and $4.5^{\circ}$.

If the refractive indices of crown glass for red,yellow,and violet colours are respectively $\mu_r$,$\mu_y$,and $\mu_v$,then the dispersive power of this glass would be

The splitting of white light into several colours on passing through a glass prism is due to