1. The problem statement, all variables and given/known data Explain using word, diagrams, and/or calculations.. (1) Why must n always be <= 2d/λ? (2) If λ is significantly greater then d, why will no diffraction occur? 2. Relevant equations Bragg's Law nλ=2dsinθ n has its maximum when sinθ is 1 (at 90°) 3. The attempt at a solution I am taking an X-Ray Analytical Methods course. I understand the general concept of Bragg's Law, but am having a hard time answering / proving the two questions above, perhaps I am over thinking it? Any feedback and/or direction would be greatly appreciated.