Physics 112 Diffraction of waves. Diffraction pattern of a red laser. Diffraction Lab is moved to Tuesday, Oct. 19. Physics 122 Applications of Vectors: Problems with vector subtraction. Continue with the worksheet. Quiz Monday, Oct 18. Sound, Light, and DIffraction test next Friday, Oct. 22. Comp Sci 110 Complete Chapter 4 Assignment and review notes. Chapter 4 quiz tomorrow, Oct 14.