Igcse Model Questions Vol1 2023 Physics Question 37

Practice objective / multiple choice question 37 from the 2023 Igcse Model Questions Vol1 Physics examination.

Igcse Model Questions Vol1 2023 Physics Objective / Multiple Choice Medium Difficulty
Question 37 IGCSE_MODEL_QUESTIONS_VOL1 • 2023 • PHYSICS • objective

A converging lens of focal length \(12\) cm forms a real image of a candle placed \(18\) cm from the lens. A second converging lens is positioned \(40\) cm behind the first lens. The final image is formed \(30\) cm behind the second lens.\n(a) Determine the object distance for the second lens.\n(b) Find the focal length of the second lens.\n(c) Calculate the overall magnification of the two‑lens system.

Answer Options

A. u_{2}=6\text{ cm}, \; f_{2}=5.00\text{ cm}, \; \text{overall magnification}=10
B. u_{2}=3\text{ cm}, \; f_{2}=2.80\text{ cm}, \; \text{overall magnification}=18
Correct Answer C. u_{2}=4\text{ cm}, \; f_{2}=3.53\text{ cm}, \; \text{overall magnification}=15
D. u_{2}=5\text{ cm}, \; f_{2}=4.00\text{ cm}, \; \text{overall magnification}=12
Correct Answer
C
Correct Option:
u_{2}=4\text{ cm}, \; f_{2}=3.53\text{ cm}, \; \text{overall magnification}=15

About This Question

This is Igcse Model Questions Vol1 2023 Physics Question 37. It is one of the objective questions from the 2023 Igcse Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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