1. The problem statement, all variables and given/known data Briefly describe how diffraction through a crystal lattice could be used to isolate a single wavelength from X-rays of many wavelengths. 2. Relevant equations Bragg's equation: 2dsin(Θ)=n*λ 3. The attempt at a solution Pretty fundamental question for the lab that I am about to go through. Instead of trying to just get by this answer, I wanted to come here and ask for some opinions and learn what I could. Here's, so far, my early understanding: At certain incident angles, and at certain wavelengths, diffraction through a crystal creates constructive interference. Using Braggs equation, we can then find the wavelength by plugging in the angle theta, d, and maxima.