Diffuse scattering does not follow this law.
A phenomenon that follows this law has a finite line width named for Darwin. Departures from ideality of this law can be shown on a rocking curve. This law can be illustrated using the Ewald sphere of reflection construction. This law is a special case of the Laue equations. This law can be used to characterize materials with the powder method. Diffuse scattering does not follow this law. This law can be used to derive the distance between similar atomic planes in a lattice, the so-called d-spacing. This law states that an integer times wavelength is equal to two times interplanar spacing times the sine of the incident beam angle, or n lambda equals two d sine theta. For 10 points, identify this law of X-ray diffraction in crystals.
A phenomenon that follows this law has a finite line width named for Darwin.
Bragg\'s law [prompt on von Laue equations before it is read]