answer the following questions

Lab #5: Interference and Diffraction Prelab Questions to be completed on a separate sheet of paper and turned in prior to the sty of lab): 1.) What does diffraction mean? 2.) When does diffraction occur? 3.) In an interference or diffraction pattern, there are locations where waves overlaps. What do they look like? 4.) What safety precautions are important to keep in mind while you're using a laser pointer? 5.) What safety precautions are important to keep in mind while you're using a laser pointer