Gce Model Questions Vol1 2020 Physics Question 31
Practice objective / multiple choice question 31 from the 2020 Gce Model Questions Vol1 Physics examination.
A thin converging lens is used to form a real image of a candle on a screen. The distance between the candle and the screen is fixed at \(120\ \text{cm}\). When the lens is placed \(30\ \text{cm}\) from the candle, a sharp image is obtained on the screen. (a) Find the focal length of the lens. (b) Assuming the lens is made of glass with refractive index \(n = 1.5\) and both surfaces have the same magnitude of radius of curvature, determine the radius of curvature of each surface.
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About This Question
This is Gce Model Questions Vol1 2020 Physics Question 31. It is one of the objective questions from the 2020 Gce Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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