If the refractive indices of crown glass for red, yellow and violet colours are $1,5140,1.5170$ and $1.5318$ respectively and for flint glass these are $1.6434,1.6499$ and $1.6852$ respectively. then the dispersive powers for crown and flint glass are respectively.

Q.

If the refractive indices of crown glass for red, yellow and violet colours are 1.5140. 1.5170 and 1.5318 respectively and for flint glass these are 1.6434, 1.6499 and 1.6852 respectively, then the dispersive power for crown and flint glass are respectively:

Q. If the refractive indices of crown glass for red, yellow and violet colours are $1.5140$,$1.5170$ and $1.6434$,$1.6499$ and $1.6852$ respectively, then the dispersive power for crown and flint glass are respectively-

Q. Find the dispersive power of flint glass. The refractive indices of flint glass for red, yellow and violet lights are $1.613,1.620$ and $1.632$ respectively.

Q. If the refractive indices of a flint glass for red, yellow and violet colours are $1.42,1.44\text{and}1.48$ respectively then, the dispersive power of the glass is :

Q. 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: