O-LevelPhysicsWaves5054/12 · May/June 2021 · Q291 Mark

Students are asked for the uses of ultrasound. Three suggested uses for ultrasound are: P cleaning jewellery Q tanning on a sunbed R obtaining an image of an unborn baby. Which suggestions are correct?

AP and Q only

BP and R only

CQ and R only

DP, Q and R

✓ Correct answer

B: P and R only

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