O-LevelPhysicsLight5054/11 · May/June 2013 · Q211 Mark

The diagram shows a thin converging lens of focal length f. Where must an object be placed to produce a real image in the position shown?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Adiagram showing the object placed between the focal point f and 2f on the left side of the lens.

Bdiagram showing the object placed at 2f on the left side of the lens.

Cdiagram showing the object placed at the focal point f on the left side of the lens.

Ddiagram showing the object placed beyond 2f on the left side of the lens.

✓ Correct answer

A: diagram showing the object placed between the focal point f and 2f on the left side of the lens.

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