Neco Model Questions Vol1 2018 Physics Question 25
Practice objective / multiple choice question 25 from the 2018 Neco Model Questions Vol1 Physics examination.
Two thin converging lenses \(L_1\) and \(L_2\) are placed coaxially \(70\ \text{cm}\) apart. Lens \(L_1\) has a focal length of \(f_1 = 15\ \text{cm}\). An object is positioned \(30\ \text{cm}\) to the left of \(L_1\). The final image formed by \(L_2\) is real, inverted, and located \(40\ \text{cm}\) to the right of \(L_2\). Determine the focal length \(f_2\) of lens \(L_2\) (in centimetres, to the nearest centimetre).
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About This Question
This is Neco Model Questions Vol1 2018 Physics Question 25. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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