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O-LevelPhysicsWaves5054/12 · Oct/Nov 2021 · Q291 Mark

An ultrasound scanner produces an image of an unborn baby. What does the scanner use to form an image of the baby?

Diagram for this question, from the exam paper

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.

Aultrasound absorbed by the baby

Bultrasound emitted by the baby

Cultrasound reflected by the baby

Dultrasound refracted by the baby

✓ Correct answer

C: ultrasound reflected by the baby

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About this question

Topic: Waves, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2021 Paper 1 Variant 2, question 29.

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