The refractive of three media are given below :{:("Medium",A,B,C),("Refractive index",1.65,1.71,1.47):}A light ray travels from medium A to medium B and another light ray travels from medium B to medium C. In which case does (a) the refracted ray bend towards the normal(b) the speed of light will be more.

The refractive of three media are given below :{:("Medium",A,B,C),("Re

1.	The refractive of three media are given below :{:("Medium",A,B,C),("Refractive index",1.65,1.71,1.47):}A light ray travels from medium A to medium B and another light ray travels from medium B to medium C. In which case does (a) the refracted ray bend towards the normal(b) the speed of light will be more.
Answer» Solution :(a) The refracted ray bend towards the normal when the light ray travels from MEDIUM A(rarer) to medium B (denser). (b) Speed of light is more in a OPTICALLY rarer medium i.e., a medium with the lowest value of refractive index. In this case it is medium C.