[1] Do not shine the laser in your Figure 2 own/partner's/instructor's eyes! Diffraction Card 121 Set up the laser system as shown in Figure 2, aligning the diffraction He-Ne Laser Diffraction Pattern card so that the laser shines through slit "A". Keep the distance from the diffraction card [3] A diffraction pattern should appear to the wall the same for all experiments. on the wall. Sketch this pattern and include it in your lab write-up. [4] Measure and record the distance from the diffraction card to the wall. We will call this distance L. Also record the distance d, which is the width of the slits. For slit "A", d= 4 x 103 meters. [5] Begin measuring the distances from the central maximum to each of the dark spots (Figure 2) and record these distances as y. (Hint first dark spot to right is n = 1, first dark spot to left is n = -1) Fill out the following data table, and determine your average value of (y / n). (n is the "order of diffraction", or spot number you are measuring to)