1. The problem statement, all variables and given/known data interference/diffraction pattern formed by two slits for light with λ=600nm on a wall L=2.0m from the slits. find a (width) and d (separtation of slits. 2. Relevant equations looking at the figure given d/a=5 dsin(theta)=mλ asin(theta)=mλ 3. The attempt at a solution so dsin(theta)=5(lambda) and asin(theta)=1λ also looking at the figure the dark spot appears .0045m from the center point. How do I solve for theta?