Physics - Geometrical Optics Question with Solution | TestHub

In an experiment for determination of refractive index of glass of a prism by$\mathrm{i}$v/s$\mathrm{\delta }$plot, it was found that a ray incident at angle${35}^{\mathrm{o}}$, suffers a deviation of${40}^{\mathrm{o}}$and that it emerges at angle${79}^{\mathrm{o}}$. In that case which of the following is closest to the maximum possible value of the refractive index?