The angular dispersion produced bya 1 pa prism (a) increases if the average refractive index increases (b) increases if the average O refractive index decreases (c) remains constant whether the O average refractive index increases or decreases (d) has no relation with average O refractive index.
angular dispersion increases if the refractive index increase because difference in angular dispersion between two colors voilet and red is proportional to their differences in ref...
30 pts
