(a) What is the ratio of the speed of red light to violet light in diamond, based on Table 25.2? (b) What is this ratio in polystyrene? (c) Which is more dispersive?
Solution 28PE
(a) the ratio of speed of red light to violet light in diamond is 1.020.
(b) the ratio of speed of red light to violet light in polystyrene is 1.012
(c) ratio of speed of red light to violet light in diamond is more than polystyrene, so the diamond is more dispersive than polystyrene.