A light ray in the air is incident on a transparent material whose index of refraction is n.
(a) Find an expression for the (non-zero) angle of incidence whose angle of refraction is half the angle of incidence.
(b) Evaluate your expression for light incident on glass (glass’s index of refraction is 1.5).
Answer. (a). Here Index of reforation =n_("medium ")=nAngle of incegence (theta_(i))=thetaAngle of refroction (theta_(r))=(theta i)/(2)=(theta)/(2)From bnell'slaw nafr sin theta_(i)=n_("medium ")sin theta_ ... See the full answer