# A converging beam of light travelling in air converges at a point  as shown in the figure. When a glass sphere of refractive index 1·5 is introduced in between the path of the beam, calculate the new position of the image. Also, draw the ray diagram for the image formed.

For the first refraction, we have  and ,

For the 2nd refraction

then,

So, the final image will be a pole of the surface 2.

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