# Bragg's Law For Diffraction

### The Terms

- Spacing between planes in the atomic lattice **[Units: m]**

- Angle between the incident wave and the scattering planes

- An integer determined by the order

- Wavelength of the incident wave **[Units: m]**

### What Does It Mean

In crystallography, this equation is used to find the angles of coherent and incoherent scattering off a crystal lattice. For direction in which the above equation is satisfied, waves scattered from atomic planes separated by a distance interfere constructively and produce maxima on the diffraction pattern.

### Further information at Warwick

Bragg's Law of Diffraction is covered in the third year module "PX393 Crystal Physics".