Neco 2020 Physics Question 29
Practice objective / multiple choice question 29 from the 2020 Neco Physics examination.
A converging lens of focal length \(f_{1}=15\;\text{cm}\) forms a real image of a candle placed \(30\;\text{cm}\) to its left. The image is \(10\;\text{cm}\) to the right of the first lens. A second converging lens is positioned \(20\;\text{cm}\) to the right of the first lens. The image from the first lens serves as the object for the second lens, and the final image is formed \(8\;\text{cm}\) to the right of the second lens. Find the focal length \(f_{2}\) of the second lens (in cm).
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About This Question
This is Neco 2020 Physics Question 29. It is one of the objective questions from the 2020 Neco Physics examination.
Difficulty level: Medium .
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