Question

In the figure shown a point object O is placed in air. A spherical boundary of radius of curvature 1.0 m separates two media.AB is principal axis.The refractive index above AB is 1.6 and below AB is 2.0. The separation between the images formed due to refraction at spherical surface is:

(A) 12 m 

(B) 20 m

(C) 14 m 

(D) 10 m

Answer 1

Correct Answer is: (A) 12 m 

For refraction by upper surface

For refraction by lower surface

Distance between images

= (16 – 4) = 12 m.