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O-LevelPhysicsWaves5054/12 · Oct/Nov 2015 · Q211 Mark

An echo sounder produces ultrasound of frequency 24 kHz. The ultrasound travels in water at a speed of 1.5 km/s. What is the wavelength in water of ultrasound of this frequency?

A0.063 m
B16 m
C36 m
D63 m

✓ Correct answer

A: 0.063 m

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About this question

Topic
Waves, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source
O-Level Physics, Oct/Nov 2015 Paper 1 Variant 2, question 21.

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