A converging lens has a focal length of 20 cm. An object is placed 40 cm from the lens. Which of the following correctly describes the image formed?

Q: How do I try a free CXC Physics question?

Just tap any of the four options on this page — no signup, no card, nothing to install. You'll see the correct answer and a full mark-scheme-style explanation within a second. Each visit shows a fresh randomly-picked question from the live CXC CSEC Physics bank, so you can keep refreshing to try different ones before deciding whether to create a free account for daily access.

Q: Is Kramizo really free for CXC Physics students?

Yes — completely free. Every student gets 45 questions a day on the free plan, across any board and any subject, with no card required and no trial countdown. Kramizo's optional Pro plan removes the daily cap and adds analytics, but the free plan is genuinely free forever. We make money from the small percentage of students who choose to upgrade — not from selling data or ads.

Q: Are the Physics questions aligned to the CXC CSEC syllabus?

Every question is written against the published CXC CSEC Physics syllabus and reviewed for accuracy before being added to the bank. We match the command words (state, describe, explain, evaluate), mark allocations, and difficulty tier you'll see on real CXC past papers. Explanations are written in the style of official examiner mark schemes so students learn exactly what marks are being awarded for.

Question

A converging lens has a focal length of 20 cm. An object is placed 40 cm from the lens. Which of the following correctly describes the image formed?

Accepted Answer

Real, inverted, and the same size as the object — When the object is placed at the centre of curvature (2f = 40 cm), the image is formed at the same distance on the other side of the lens, making it real, inverted, and the same size as the object. This case occurs specifically when u = 2f.

Answer

Real, inverted, and diminished

Answer

Virtual, upright, and magnified

Answer

Virtual, inverted, and diminished

Answer

Real, inverted, and the same size as the object

One real Physics question.No signup. 30 seconds.

One real Physics question.
No signup. 30 seconds.