An X-ray photon that has a wavelength of 3.4500 10-10 m collides with a stationary electron. The scattered X-ray photon, which has a wavelength of 3.4985 10-10 m, returns along the in the initial path.Verify that this collision is elastic. Marks will be awarded based on the relationships among the two physics principles* that you state, the formulas that you state, the substitutions that you show, and your final