Given figures shows the arrangement of t...

Given figures shows the arrangement of two lenses. The radii of curvature of all the curved surfaces are same. The ratio of the equivalent focal length of combinations P,Q and R is:

A

`1:1:1`

B

`1:1:-1`

C

`2:1:1`

D

`2:1:2`

Text Solution

Verified by Experts

The correct Answer is:

A

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