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optics - How is focal length defined for a two-lens system, separated by a distance $d$? - Physics Stack Exchange
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Physics 55.4 Optics- Multiple Lenses (12 of 12) Magnification of Multi Lens System: Example - YouTube
Imaging of an object by a two-lens system consisting of one positive (L... | Download Scientific Diagram
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Lenses in Combination The analysis of multi-lens systems requires only one new rule: The image of the first lens acts as the object for the second lens. - ppt download
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