![Ray optics for the calculation of focal length of the combined lens system. | Download Scientific Diagram Ray optics for the calculation of focal length of the combined lens system. | Download Scientific Diagram](https://www.researchgate.net/profile/Huseyin-Uvet/publication/221069928/figure/fig2/AS:746074046226434@1554889322650/Ray-optics-for-the-calculation-of-focal-length-of-the-combined-lens-system.png)
Ray optics for the calculation of focal length of the combined lens system. | Download Scientific Diagram
![Two converging lenses have focal length f1 and f2 (f1 > f2). The optical axis of the two lenses coincide. This lens system is used to form an image of real object. Two converging lenses have focal length f1 and f2 (f1 > f2). The optical axis of the two lenses coincide. This lens system is used to form an image of real object.](https://sahay.guru/wp-content/uploads/2020/10/235-s-1-752x1024.jpg)
Two converging lenses have focal length f1 and f2 (f1 > f2). The optical axis of the two lenses coincide. This lens system is used to form an image of real object.
Imaging of an object by a two-lens system consisting of one positive (L... | Download Scientific Diagram
![optics - How is focal length defined for a two-lens system, separated by a distance $d$? - Physics Stack Exchange optics - How is focal length defined for a two-lens system, separated by a distance $d$? - Physics Stack Exchange](https://i.stack.imgur.com/fwrwB.png)
optics - How is focal length defined for a two-lens system, separated by a distance $d$? - Physics Stack Exchange
![Two converging lenses have focal length f1 and f2 (f1 > f2). The optical axis of the two lenses coincide. This lens system is used to form an image of real object. Two converging lenses have focal length f1 and f2 (f1 > f2). The optical axis of the two lenses coincide. This lens system is used to form an image of real object.](https://sahay.guru/wp-content/uploads/2020/10/235-2-1-1024x983.jpg)