PhysicsCode 9702

Stationary waves

What this topic asks you to be able to do

  • account for and apply the superposition principle
  • show an understanding of experiments in which air columns, stretched strings and microwaves produce stationary waves (end corrections are taken as negligible, and the concept of end correction does not need to be known)
  • account for how a stationary wave forms by means of a graphical approach, and pick out nodes and antinodes
  • understand how the wavelength can be found from where the nodes or antinodes of a stationary wave sit