1. The problem statement, all variables and given/known data Measurements of XRay scattering from a metal are made. The bragg peaks are θ = 53° and 48° for temperatures of 300K and 1272K. What is the linear expansion coefficient? 2. Relevant equations linear expansion coef is given by (1/L)(dL/dT) Bragg equation (differential form) δd / d=δθ / tan θ. 3. The attempt at a solution I don't know where to start with this question, any advice would be appreciated.