8.1 Stationary waves

1 explain and use the principle of superposition
2 show an understanding of experiments that demonstrate stationary waves using microwaves, stretched
strings and air columns (it will be assumed that end corrections are negligible; knowledge of the concept
of end corrections is not required)
3 explain the formation of a stationary wave using a graphical method, and identify nodes and antinodes
4 understand how wavelength may be determined from the positions of nodes or antinodes of a stationary
wave