The minimum value of refractive index of the material of the prism for which the ray (1) under goes total internal reflection on the face AC is:

Q. A ray of light, incident on one face of an equilateral prism, undergoes total internal reflection at another face. If the refractive index of the material of prism is $\sqrt{2}$, then angle of refraction $\left(r_2\right)$ at the other face will be

Q. Light is incident normally on face AB of a prism as shown in figure. A liquid of refractive index $\mu$ is placed on the face AC of the prism. The prism is made of glass of refractive index 3/2. The limit of $\mu$ for which total internal reflection takes place on face AC is :

Q. Light is incident normally on face AB of a prism as shown in the figure A liquid of refractive index n is placed on face AC of the prism The prism is made of glass of refractive index 3/2 The limits of n for which total internal reflection takes place on face AC is

Q. The minimum value of $\theta$ for which the ray suffers total internal reflection on the face $AC$ is

Q. At what angle should a ray of light be incident on the face of a prism of refracting angle ${60}^{\circ }$ so that it just suffers total internal reflection at the other face? The refractive index of the material of the prism is $1.524$.