Задача 40360.

A beam of parallel X-rays with a wavelength of 0.15 nm is incident on the face of a rock salt crystal. At what angle to the atomic plane is the third-order diffraction maximum observed if the distance between the atomic planes of the crystal is 0.285 nm?

Detailed solution with a brief record of the conditions, formulas and laws used in the solution, derivation of the calculation formula and answer.
If you have any questions regarding the solution, please write. I try to help.