Question:
A converging lens of focal length 50 cm is placed co axially
Last updated: 6/25/2023
![A converging lens of focal length 50 cm is placed co axially](https://media.kunduz.com/media/sug-question-candidate/20210708083202260648-3097791.jpg?h=512)
A converging lens of focal length 50 cm is placed co axially in contact with another lens of unknown focal length If the combination behaves like a diverging lens of focal length 50 cm What is power of second lens 2 D 2 D 4 D 4 D