(Solved): For a certain optical medium the speed of light varies from a low value of 1.90108m/s for viole ...

For a certain optical medium the speed of light varies from a low value of $1.90\times 10^8\mathrm{m}/\mathrm{s}$ for violet light to a high value of $2.02\times 10^8\mathrm{m}/\mathrm{s}$ for red light. Calculate the range of the index of refraction $n$ of the material for visible light. $n_{\text{violet }}=$ $n_{\text{red }}=$ A white light is incident on the medium from air, making an angle of $30.0^{?}$ with the normal. Compare the angles of refraction for violet light and red light. ${?}_{\text{violet }}=$ $\text{ - }{?}_{\text{red }}=$ Compare the angles of refraction for violet light and red light when the incident angle is $60.0^{?}$. ${?}_{\text{violet }}=$ ${?}_{\text{red }}=$