The minimum refractive index of total reflection prism (a right-angled glass prism with two 45° angl

Question

The minimum refractive index of total reflection prism (a right-angled glass prism with two 45° angles and one 90° angle, designed to redirect light through total internal reflection (TIR) rather than a mirrored surface) is\

Professor PC Thomas Classes · Answer

Maximum critical angle of the material of the total reflection prism is 45 as is seen from the figure.\ $\mathrm{n}_{\min }=\frac{1}{\sin \mathrm{C}_{\max }}=\frac{1}{\sin 45}=$\