Four combinations of two thin lenses are given in List-I. The radius of curvature of all curved surface is r and the refractive index of all lenses is 1.5. Match lens combinations in List ‐ I with their focal length in List ‐ II and select the correct answer using the code given below the lists.
List‐I List‐II
(P) 
(1)2 r
(Q) 
(2) 
(R) 
(3) 
(S) 
(4) r
Code:
Text Solution
Verified by ExpertsThe correct answer is:
B
or 
(P) 
(Q) 
(R) 
(S) 
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