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How to find focal length of lenses in contact n different refractive index

Kashyap Mandavilli , 9 Years ago
Grade 12
anser 1 Answers
Pranav Dabhade
First find focal length of individual lenses i.e f1 & f2 from lens formula,then use formula 1/F=1/f1 +1/f2, where F is required focal length.
Last Activity: 9 Years ago
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