PHYS_Lab_Report_6

Fig 2. This graph represents the m values observes through our experiment along the x-axis, while the y-axis is calculated by dSinθ. The slope of this graph is λ, as dSinθ = m ( λ). The data reported in this figure is derived from the 25 mm slits. D = 130 cm Calculations: dSinθ d= 5mm -> 0.005m 0.005 Sin ( 0.617) = 0.005384 0.005 Sin ( 1.057) = 0.009223 0.005 Sin ( 1.189) = 0.010385 d= 25mm -> 0.025m 0.025 Sin ( 0.308) = 0.01343 0.025 Sin ( 0.441) = 0.01924 0.025 Sin ( 1.321) = 0.05763 θ = tan -1 (y/D) 5mm slit θ = tan -1 (1.4/ 130) = 0.617 θ = tan -1 (2.4/ 130) = 1.057 θ = tan -1 (2.7/ 130) = 1.189 25mm slit θ = tan -1 (0.7/ 130) = 0.308 θ = tan -1 (1.0/ 130) = 0.441 θ = tan -1 (3.0/ 130) = 1.321 y = 0.0091x - 0.0061 R² = 0.9953 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0 1 2 3 4 5 6 7 8 dsin θ m 25mm Slit

waves from interference it is around the same but with diffraction there is a great deal of peaks and valleys in intensity. 9. What does this experiment tell us about light? This experiment teaches us about diffraction, interference, the difference between single and double-slit experiments, and maxima/minima. This experiment showed how light waves behave as other waves do, more so than participles.