1. The problem statement, all variables and given/known data Suppose the interference pattern shown in the figure is produced by monochromatic light passing through two slits, with a separation of 127 µm, and onto a screen 1.14 m away. What is the wavelength? 2. Relevant equations wavelength = (dsin[tex]\theta[/tex]) / m y=Ltan[tex]\theta[/tex] 3. The attempt at a solution [tex]\theta[/tex]= arctan (y/L) = arctan (.023 / 1.4) = .941 then plugged it in to get wavelenth. i used m = 2 for 2 slits wavelenth = 127 x 10^-6m x sin .941 / 2 i think I have m wrong?