A glass slab made of a material of refractive index `n_1` is kept in a medium of refractive index `n_2`.
A light ray is incident on the slab. Draw the path of the rays of light emerging from the glass slab, if `n_1 gt n_2`

A glass slab made of a material of refractive index n_1 is kept in a medium of refractive index n_2 . A light ray is incident on the slab. Draw the path of the rays of light emerging from the glass slab, if n_1=n_2

A concave lens made of a material of refractive index n_1 is kept in a medium of refractive index n_2 . A parallel beam of light is incident on the lens. Complete the path of rays of light emerging from the concave lens (i) n_1 gt n_2 (ii) n_1 = n_2 (iii) n_1 lt n_2 .

A convex lens made of a material of refractive index n_2 is kept in a medium of refractive index n_1 . A parallel beam of light is incident on the lens. Complete the path of rays of light emerging from the convex lens if (i) n_1 lt n_2 (ii) n_1 = n_2 (iii) n_1 gt n_2 .

The refractive index of the material of a concave lens is n . It is immersed in a medium of refractive index n_(1) . A paprallel beam of light is incident on the lens. Trace the path of emerged rays in each of the following cases : (a) n_(1) gt n (b) n_(1) lt n ( c) n_(1) = n .

A rectengular glass slab ABCD of refractive index n_1 is immersed in water of refractive index n_2(n_1gtn_2) . A ray of light is incident at the surface AB of the slab as shown. The maximum value of the angle of incidence alpha_max such that the ray comes out only from the other surface CD is given by

A rectangular slab ABCD, of refractive index n_1 , is immersed in water of refractive index n_2(n_1 lt n_2) . A ray of light is incident at the surface AB of the slab as shown in Fig. Find the maximum value of angle of incidence alpha_(max) , such that the ray comes out only from the other surface CD.