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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 2 > Chapter 17 - Refraction of Light by Plane Surfaces > A rectangular glass slab ABCD of refractive index n1 , is immersed in water of refractive index n2 ​(n1 > n2 ). A ray of light is incident at the surface AB of the slab as shown in the figure. The maximum value of angle of incidence α max ​, such that the ray comes out only from the other surface CD, is given by

A rectangular glass slab ABCD of refractive index n1 , is immersed in water of refractive index n2 ​(n1 > n2 ). A ray of light is incident at the surface AB of the slab as shown in the figure. The maximum value of angle of incidence α max ​, such that the ray comes out only from the other surface CD, is given by

A rectangular glass slab ABCD of refractive index n1 is given by is immersed in water of refractive index n2 ​(n1 > n2 ). A ray of light is incident at the surface AB of the slab as shown in the figure. The maximum value of angle of incidence α max ​ such that the ray comes out only from the other surface CD