Formula for dispersive power is (where symbols have their usual meanings) or 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
Three thin prisms are combined as shown in figure . The refractive indices of the crown glass for red , yellow and violet rays are mu_r,mu_yand mu_v respectively and those for the flint glass are mu_r',mu_y'and mu_v' respectively . Find the ratio (A')/A for which , there is no net angular dispersion (A and A' are respective deviations )
The refractive indices of crown glass for red , yellow and blue rays are 1.527 , 1.530 and 1.535 respectively . What is the dispersive power of crown glass for red and blue rays .
Arrange mu_s , mu_k and mu_r in ascending order.
The refractive index of a prism measured using three lines of a mercury vapour lamp. If mu_1,mu_2 and mu_3 are the measured refractive indices for these green, blue and yellow lines respectively, then
Figure shows two glass slabs placed one above the other in air. Refractive indices of glass slabs are mu_(2) and mu_(3) and that of air is mu_(1) . A ray of light enters and follows a path as shown in figure. It can be concluded that
The refractive indices for violet, yellow and red colours for a flint glass prism are 1.634, 1.623 and 1.616. Calculate the dispersive power of the prism material.
For which colour, red and blue, is the refractive index of glass greater ?
