The indexofre'aotion over the visible and nearultraviolet portion of the spectrum for a particular glass is given by the formula: 12m III-{A} = 1.49 + m1. {1) 1arhere A is in nanometers {um} and its = 215 nm. If we make an equilateral prism from this glass and illuminate it with a beam of light: {a} What is the angleofinoidenoe for the minimum deviation at 55E] run? [h] Do you think the above formula holds for A = 215 nm? Explain