A triangular medium has varying refracting index `n=n_0 +ax`, where x is the distance (in cm)
Channel: Doubtnut
Date: 26/01/2020

A triangular medium has varying refracting index `n=n_0 +ax`, where x is the distance (in cm) along x-axis from origin and `n_0 = 4/3`. A ray is incident normally on face OA at the mid-point of OA. The range of a so that light does not escape through face AB when it falls first time on the face AB(OA=4cm, OB=3cm and AB=5cm): (Surrounding medium is air)