O-LevelPhysicsWaves5054/12 · Oct/Nov 2020 · Q281 Mark

Which row correctly describes ultrasound?

Alongitudinal, less than 20 kHz

Blongitudinal, greater than 20 kHz

Ctransverse, less than 20 kHz

Dtransverse, greater than 20 kHz

✓ Correct answer

B: longitudinal, greater than 20 kHz

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