A slab of refractive index `mu` is placed in air and light is incident at maximum angle `theta_0` from vertical. Find minimum value of `mu` for which total internal reflection takes place at the vertical surface.

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

Consider the situation shown in figure. Find the maximum angle theta for which the light suffers total internal reflection at the vertical surface.

Consider the situation shown in figure. Find the maximum angle theta for which the light suffers total internal reflection at the vertical surface.

Consider the situation shown in figure. Find the maximum angle theta for which the light suffers total internal reflection at the vertical surface.

Consider the ray diagram for the refraction given Fig. The maximum value of angle theta for which the light suffers total internal reflection at the vertical surface, is. .

Consider the ray diagram for the refraction given Fig. The maximum value of angle theta for which the light suffers total internal reflection at the vertical surface, is

Consider the ray diagram for the refraction given Fig. The maximum value of angle theta for which the light suffers total internal reflection at the vertical surface, is. .

A rectangulat block of refractive index mu is placed on a printed page lying on a horizontal surface as shown in Fig. , Find the minimum value of mu so that the letter L on the page is not visible from any of the vertical sides.