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Solution


Q.

A lens is made up of 3 different transparent media as shown in figure. A point object O is placed on its axis beyond 2f. How many real images will be obtained on the other side                        [2023]
1 2  
2 1  
3 No image will be formed  
4 3  

Ans.

(4)

Since, the given lens is made up of three different materials so there are three refractive indices, μ and hence, three images will be formed.