Physics 9702 · AS & A Level · Production and use of ultrasound

Production and use of ultrasound — practice question

Piezo-electric transducers are employed to produce ultrasonic waves.
(a)[1]

State one further use of piezo-electric transducers, apart from ultrasound.

(b)[6]

Explain the key principles behind using ultrasound to obtain diagnostic information about internal body structures.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: A suitable application of the piezoelectric effect, for instance a microphone or pressure sensor

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