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(Part 4) List I contains four combination of 2 lenses (1 and 2) whose focal lengths (in cm) are indicated. In all cases the object is placed 20cm from the first lens on the left, and the distance between the 2 lenses is 5cm.
List II contains the position of the final images.
Part 4: (see picture in thumbnail)
(A) 1 implies P, 2 implies R, 3 implies Q, 4 implies T
(B) 1 implies Q, 2 implies P, 3 implies T, 4 implies S
(C) 1 implies P, 2 implies T, 3 implies R, 4 implies Q
(D) 1 implies T, 2 implies S, 3 implies Q, 4 implies R

Previous video in this series can be seen at: https://youtu.be/9dMAKLeqsLA
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