Solving a problem in physics section 18 point 45 optics

Solving a problem in physics section 18 point 45 optics

45. A narrow beam of X-rays with a wavelength λ = 245pm falls at an angle θ in the slip face of a natural single crystal NaCl (M = 58,5 g / mol), a density ρ = 2,16 g / cm3. Determine the slip angle θ, if the specular reflection from this face and there is a maximum 2 - order.

Additional information:

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)