Laser Diffraction Experiment Exercise: Using the data from the table, perform the following tasks. Use the ruling density 1/d = 500 LPI. 1. Compute Om for each of the distance D and complete the table. 2. For each distance D, draw a graph of sin em vs m. Fit a straight line to the data points. 3. Estimate slope of the straight line and use it to estimate the wavelength. 4. Finally, compute the mean wavelength of the laser in nano metre. D (cm) 8m 60 Im (cm) 21 = 1.3 22 = 2.6 23 = 3.9 24 = 5.1 21 = 1.8 12 = 3.6 23 = 5.4 14 = 7.2 1 = 2.3 22 = 4.6 23 = 6.9 24 = 9.2 70 90 1