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Combined Science — Physics

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Combined Science — Physics

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Home/IGCSE/Science/Exam Questions/Sound

Sound (Cambridge International IGCSE Science): Exam Questions

1 questions · 1 marks · ≈ 1 min

Guided practice

11 markeasy

What is the frequency range of ultrasound?

Choose your answer

A

all frequencies between 20 Hz and 20 kHz

B

all frequencies higher than 20 kHz

C

all frequencies lower than 20 Hz

D

all frequencies lower than 20 Hz and all frequencies higher than 20 kHz