JEE Mains Model Paper 6

A transparent sphere of radius 20 cm and refractive index 1.6 is fixed in a hole of the partition separatingthe two media: A (refractive index n1 = 1.2) and B (refractive index. n3 = 1.7). A luminous point objectsis placed 120 cm from the surface of the sphere in medium A. It is viewed from D in medium B in adirection normal to the sphere. Find the position of the image formed by the rays, from point N.