The plot presented below shows the X-ray diffraction pattern measured for a certain polycrystalline material with a cubic crystal system. The CuKa radiation (=1.540562 Ã…) was used to probe the crystallographic structure, and the lattice parameter of the material is known to be 2.8665 Ã…. Determine the unit cell type of this material.
Intensity (relative)
20.0
30.0
40.0
50.0
60.0
70.0
Diffraction angle 20
80.0
90.0
100.0
