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CAIE IGCSE Physics Virtual Images from a Lens

Practise predicting the image change when an object moves inside a converging lens's focal length, distinguishing the resulting virtual upright image from a real one.

Syllabus
2026–2028
Course
Physics 0625

Exam points

  • identify a virtual upright image when the object is closer to the lens than its focal length
  • contrast this with a real inverted image formed when the tested object position is beyond focus

3.2.3.6—Ray diagrams for the formation of a question 1

[Maximum number: 2]

Fig. 6.1 shows an object O which is 5.0 cm away from the centre of a thin, converging lens L . The focal length of L is 3.0 cm . Fig. 6.1 is drawn to full scale.

Fig. 6.1

Fig. 6.1

The object moves closer to L. The new distance between L and the object is less than the focal length of L.

Describe how the new image is different from the image in (a)(iv).

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