Gce Model Questions Vol1 2017 Physics Question 37

Practice objective / multiple choice question 37 from the 2017 Gce Model Questions Vol1 Physics examination.

Gce Model Questions Vol1 2017 Physics Objective / Multiple Choice Medium Difficulty
Question 37 GCE_MODEL_QUESTIONS_VOL1 • 2017 • PHYSICS • objective

A converging lens of focal length \(12\ \text{cm}\) is used to form a real image of a candle on a screen that is \(80\ \text{cm}\) away from the candle. The lens can be placed anywhere between the candle and the screen. Determine the two possible positions of the lens measured from the candle, and state the linear magnification of the image for each position. Give distances to one decimal place and magnifications to two decimal places.

Answer Options

A. Lens positions: 13.5 cm and 66.5 cm from the candle. Magnifications: 4.10 (for 13.5 cm) and 0.27 (for 66.5 cm).
B. Lens positions: 12.0 cm and 68.0 cm from the candle. Magnifications: 3.90 (for 12.0 cm) and 0.30 (for 68.0 cm).
Correct Answer C. Lens positions: 14.7 cm and 65.3 cm from the candle. Magnifications: 4.44 (for 14.7 cm) and 0.23 (for 65.3 cm).
D. Lens positions: 15.2 cm and 64.8 cm from the candle. Magnifications: 4.80 (for 15.2 cm) and 0.20 (for 64.8 cm).
Correct Answer
C
Correct Option:
Lens positions: 14.7 cm and 65.3 cm from the candle. Magnifications: 4.44 (for 14.7 cm) and 0.23 (for 65.3 cm).

About This Question

This is Gce Model Questions Vol1 2017 Physics Question 37. It is one of the objective questions from the 2017 Gce Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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