Please take your time to paraphrase and rephrase the paragraphs below carefully! These paragraphs relate to "Lab 2: Identification of Materials by X-ray Diffraction."

All X-ray diffractions beings with \"Bragg's Law : nh=2dsin @ Where: 0 = The angle where the diffraction occurs. d = The distance between successive planes of atoms. A = the wavelength of monochromatic x-rays. n = An integer that represents the diffraction order. The distance between these planes of atoms depends on the material being examined: with this spacing, it becomes possible to identify the substance. For this experiment, the method involved is the Debye Scherrer powder method. This technique involves a finely ground sample rotated while bombarded with suitable wavelength X-rays. A series of arcs are produced on a photographic film, as shown in Figure 2.2, as the incident X-ray beam is diffracted and reflected. The number and distance between the arcs are specific to the powder sample material being tested. Bragg's Law determines the \"d spacing between the planes unique to the material being tested