An oceanographer uses an active sonar system on a research vessel to map the seabed. The sonar transducer emits a beam of ultrasound with a frequency of 25 kHz25\text{ kHz}25 kHz.
Which of the following is the best estimate for the wavelength of this ultrasound wave in seawater?
1.4 cm1.4\text{ cm}1.4 cm
6.0 cm6.0\text{ cm}6.0 cm
60 cm60\text{ cm}60 cm
6.0 m6.0\text{ m}6.0 m
43 exam-style questions on OCR GCSE Physics Wave behaviour. Each one has a worked solution and a mark scheme showing where the marks go.