![Displacement Method for finding Focal Length of Convex Lens Class 12Optics @Kamaldheeriya Maths easy - YouTube Displacement Method for finding Focal Length of Convex Lens Class 12Optics @Kamaldheeriya Maths easy - YouTube](https://i.ytimg.com/vi/QvTNJ-oRsV4/maxresdefault.jpg)
Displacement Method for finding Focal Length of Convex Lens Class 12Optics @Kamaldheeriya Maths easy - YouTube
![Experiments to measure the focal length of a converging lens Physics Homework Help, Physics Assignments and Projects Help, Assignments Tutors online Experiments to measure the focal length of a converging lens Physics Homework Help, Physics Assignments and Projects Help, Assignments Tutors online](https://physicsmax.com/wp-content/uploads/2014/08/1371.jpg)
Experiments to measure the focal length of a converging lens Physics Homework Help, Physics Assignments and Projects Help, Assignments Tutors online
![A convex lens of focal length F is placed in contact with a concave lens of focal length F . The equivalent focal length of the combination is: A convex lens of focal length F is placed in contact with a concave lens of focal length F . The equivalent focal length of the combination is:](https://dwes9vv9u0550.cloudfront.net/images/1353425/4b922a16-2861-42bf-8b90-2b29fde7abb6.jpg)
A convex lens of focal length F is placed in contact with a concave lens of focal length F . The equivalent focal length of the combination is:
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