e.) Return the color to yellow-green so that the initial setup is restored. PART B: MANIPULATING THE MATH Step 1: Write a single proportionality that summarizes all the findings from Part A. Step 2: Move the barrier to approximately 3500 nm from the screen and observe the expected change in the fringe pattern. Now restore the spacing of the initial setup by changing only the slit separation. In other words, move the slit separation until y is the same value it was at initial set up Step 9. Do not move the barrier and do not change the source color. Use the tape measure to measure the distance from the barrier to the screen. a) How did you succeed? 1.) Record distance. x = 2.) What is the new slit separation? d =