Neco Model Questions Vol1 2017 Physics Question 36

Practice objective / multiple choice question 36 from the 2017 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2017 Physics Objective / Multiple Choice Medium Difficulty
Question 36 NECO_MODEL_QUESTIONS_VOL1 • 2017 • PHYSICS • objective

Two thin converging lenses L1 and L2 have focal lengths \(f_{1}=10\ \text{cm}\) and \(f_{2}=20\ \text{cm}\) respectively. They are placed \(25\ \text{cm}\) apart on the same principal axis. An object \(2.0\ \text{cm}\) tall is positioned \(15\ \text{cm}\) to the left of L1. Determine (i) the position of the final image formed by the combination relative to L2, and (ii) the overall linear magnification of the object.

Answer Options

A. The final image is 2 cm to the left of L2; overall magnification = 0.8 (image upright and 0.8 times the size).
Correct Answer B. The final image is 4 cm to the right of L2; overall magnification = -1.6 (image inverted and 1.6 times larger).
C. The final image is 4 cm to the left of L2; overall magnification = -0.5 (image inverted and half the size).
D. The final image is 6 cm to the right of L2; overall magnification = -1.2 (image inverted and 1.2 times larger).
Correct Answer
B
Correct Option:
The final image is 4 cm to the right of L2; overall magnification = -1.6 (image inverted and 1.6 times larger).

About This Question

This is Neco Model Questions Vol1 2017 Physics Question 36. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Physics examination.

Difficulty level: Medium .

View More Neco Model Questions Vol1 2017 Physics Questions More Neco Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support