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Subjects / LC Physics / Waves, sound and light

Ultrasound, optics in medicine and solar irradiance (2025 spec)

Ultrasound imaging, optical fibres and endoscopes, and solar irradiance I = P/A and its effects on life on Earth. Added for the revised specification (students starting 5th year from September 2025).

In review 5th Year6th Year HigherOrdinary
15practice questions

Match the pairs: 1 · Multiple choice: 7 · Select all that apply: 1 · Numeric answer: 3 · Put in order: 1 · Short answer: 2

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Multiple choice
Why is ultrasound used instead of X-rays to scan a fetus?
Choose one answer
Hint 1

Which can damage DNA?

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