A geologist uses a slow-motion camera to count the individual low-frequency surface ripples (infrasound) propagating through a muddy basin after a minor tremor. A colleague suggests using the same visual tracking and manual counting method to measure the frequency of the ultrasound waves emitted by a bat during navigation.
Explain why this visual manual counting method would not be suitable for determining the frequency of the bat's ultrasound emissions.
35 exam-style questions on Edexcel GCSE Physics 4.3 Sound, ultrasound and infrasound (physics only). Each one has a worked solution and a mark scheme showing where the marks go.