The refractive indices of a certain liquid for red violet colours are `1.325` and `1.333`, respectively. Find the difference between the speeds of the rays of these two colours in the liquid.

The refractive index for water for red and violet colours are 1.325 and 1.334 respectively. Find the difference between the velocities of these two colours in water.

If the refractive indices of a prism for red, yellow and violet colours be 1.61, 1.63 and 1.65 respectively, then the dispersive power of the prism will be

The refractive indicates of flint glass for red and violent colours are 1.644 "and" 1.664 . Calculate its dispersive power.

The refractive indicates of flint glass for red and violent colours are 1.644 "and" 1.664 . Calculate its dispersive power.

The refractive indicates of flint glass for red and violent colours are 1.644 "and" 1.664 . Calculate its dispersive power.

The refractive indices of a material for red, violet and yellow colour lights are 1.52, 1.62 and 1.59 respectively. Calculate the dispersive power of the material. If the mean deviation is 40^@ what will be the angular dispersion produced by a prism of this material ?

The refractive indices of flint glass prism for violet, Yellow and Red colours are 1.790, 1.795 and 1.805 respectively, find dispersive power of the flint glass.

The refractive indices of flint glass prism for violet, Yellow and Red colours are 1.790, 1.795 and 1.805 respectively, find dispersive power of the flint glass.