Can we measure the focal length of the divergent lens by placing this lens in front of the convergent lens (given all lenses are coaxial)? - Quora
![A parallel beam of light is incident on diverging lens of focal length 12 cm. The emergent beam passes through a converging lens of focal length 20 cm placed coaxial with it. A parallel beam of light is incident on diverging lens of focal length 12 cm. The emergent beam passes through a converging lens of focal length 20 cm placed coaxial with it.](https://homework.study.com/cimages/multimages/16/4587233786064874567982.png)
A parallel beam of light is incident on diverging lens of focal length 12 cm. The emergent beam passes through a converging lens of focal length 20 cm placed coaxial with it.
A diverging lens that has a 20-cm focal length is positioned 5.0 cm from a 2.0-cm object. Will the image be larger or smaller? Prove your answer? - Quora
![SOLVED:A diverging lens with a focal length of -15 cm and a converging lens with a focal length of 12 cm have a common central axis. Their separation is 12 cm. An SOLVED:A diverging lens with a focal length of -15 cm and a converging lens with a focal length of 12 cm have a common central axis. Their separation is 12 cm. An](https://cdn.numerade.com/previews/143efb55-be45-4eda-9804-0dfe4b0a0215_large.jpg)