A marine research vessel uses low-frequency sonar to map the seabed. The sonar system transmits an acoustic wave with a frequency of 40 Hz.
The wave speed of this acoustic wave in seawater is 1.56 km/s.
Calculate the wavelength of the acoustic wave, in metres.
Use the equation:
wavelength=wave speedfrequency \text{wavelength} = \frac{\text{wave speed}}{\text{frequency}} wavelength=frequencywave speed64 exam-style questions on Edexcel GCSE Physics 4.1 Wave properties. Each one has a worked solution and a mark scheme showing where the marks go.