(d) The nodes and antinodes are formed in a standing wave pattern as a result of the interface of two waves. Distance between two nodes is half wavelength ($\lambda$)
[image:15_image88.emf]
Standerd equation of standing wave is
$y = 2_{a}\sin{\frac{2\pi x}{\gamma}\cos\frac{2\pi vt}{\gamma}}$
Where a is amplitude, the wavwlength