Refractive index of glass for red and violet colours are q.50 and 1.60, repectively. Find:
a. The refractive index for yellow colour, approximately
b. Dispersive power of the medium.

Refractive index of glass for red and violet colors are 1.50 and 1.60, respectively. Find: a. The refractive index for yellow color, approximately b. Dispersive power of the medium.

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.

The refractive index of the material of the prism for violet colour is 1.69 and that for red is 1.65. If the refractive index for mean colour is 1.66, the dispersive power of the material of the prism

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 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.

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