Physics · Oct / Nov 2021 · Paper 12 · Question 29
5054Sound
An ultrasound scanner produces an image of an unborn baby. What does the scanner use to form an image of the baby?
- Aultrasound absorbed by the baby
- Bultrasound emitted by the baby
- Cultrasound reflected by the baby
- Dultrasound refracted by the baby
As printed in the paper
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Correct answer: C. ultrasound reflected by the baby
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