As shown in Fig. PQ is a ray incident on prism ABC . Show the corresponding refracted and emergent rays. The critical angle for the material of the prism is 45^@ . What is refractive index of the material of prism ? .
A point source of light is kept on the surface of a sphere and it is found that parallel light rays emerge from the other side of the sphere. What is refractive index of material of the sphere ?
The refractive indices of a diamond and water are 2.4 and 4//3 , respectively. What is the refractive index of diamond relative to water?
