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（a）Describe how the piezoelectric crystal in a transducer generates ultrasound waves for use in medical diagnosis． ［3］

Physics
IGCSE&ALevel
CAIE
Exam No：9702_s25_qp_44 Year：2025 Question No：IGCSE&ALevelPhysics2025A20146

Answer:



Knowledge points:

24.1 Production and use of ultrasound

Solution:

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