Compare the dispersive powers of two prisms if one of them deviates the blue and red rays through `10^(@)` and `6^(@)` respectively and the second prism through `8^(@)` and `4.5^(@)`

A glass prism A deviates the red and blue rays through 10^(@) and 12^(@) respectively . A second prism (B) deviates them through 8^(@) and 10^(@) respectively . What is the ratio of their dispersive powers ?

A glass prism deviates the red and blue colour rays through 8^(@) and 10^(@) , respectively. A second prism of equal refracting angle deviates them through 10^(@) and 12^(@) respectively. Calculate the ratio of their dispersive powers.

A prism of a certain angle deviates the red and blue rays by 8^@ and 12^@ respectively. Another prism of the same angle deviates the red and blue rays by 10^@ and 14^@ respectively. The prisms are small angled and made of different materials. The dispersive powers of the materials of the prisms are in the ratio

A prism of a certain angle deviates the red and blue rays by 8^@ and 12^@ respectively. Another prism of the same angle deviates the red and blue rays by 10^@ and 14^@ respectively. The prisms are small angled and made of different materials. The dispersive powers of the materials of the prisms are in the ratio

A thin prism of refracting angle 5^(@) deviates the red and blue rays by 9.9^(@) and 10.1^(@) . The dispersive power of the material is

A small angled prism of 4^(@) deviates a ray through 2.48^(@) . Find the refractive index of the prism.