PPT-Two-Source Constructive and Destructive Interference Conditions

Crests Troughs S 1 P S 2 Crests Troughs S 1 P l 1 l 2 S 2 Crests Troughs S 1 P l 1 l 2 S 2 l l 2 l 1 Path length difference t t 2 t 1 Travel time difference. Introduction to Physics II. . Class 4 – . Outline:. Ch. 21, sections . 21.5-21.8. Wave . Interference . Constructive . and Destructive Interference . Thin-Film . Optical . Coatings . . . Interference . Wave Behavior. When waves encounter new mediums, barriers, or other waves they can behave in different ways. In physics these behaviors are described using some of the . following terms. .. Reflection. Ms. . Meskie. Ms. Krutty. Check This Out!. Volcanoes. Stations. Station 1. Page 1, question 1: What do you think will happen when water is poured over the “hill”?. Station 2. Page 2, question 9: What will happen when you rub sandpaper over the limestone?. April 8 – April 9. Interference. Can two different objects occupy the . exact. same location at the . exact . same time? . Of course not … but two waves can! . When waves meet, they . superimpose . Has wave properties.. Can diffract.. Can constructively or destructively interfere. .. Coherent Light. A beam of light that has the same frequency, wavelength, phase, and direction is called . coherent. Two pulses travelling in opposite directions will pass through each other unaffected. While passing, the displacement is simply the sum of the individual displacements. CP 514. SUPERPOSITION OF WAVES. Section 9.1. Key Terms. Interference. Principle of Superposition. Constructive Interference. Destructive Interference. Wave Interference. Remember that waves are the result of particle vibrations.. Particles in a medium are connected by forces.. Jazz . Slappey. Ms.Carter. 5. th. Grade. December 1, 2015. What are Constructive Forces?. Constructive Forces are processes that help build or construct the Earth.. Constructive forces can deposit soil or silt in a river.. Constructive Forces. A constructive force is on that build up the Earth’s surface.. B. Examples: . Mountain building . Deposition of sediment. Volcanic Eruption. August 2006 brought two new things to the . Constructive. vs. . Destructive. Processes. Constructive vs. Destructive. Constructive forces affect the earth's surface by building it up while forming new crust and landforms like mountains, islands, deltas, and sand dunes.. Constructive Process. Things that happen to the Earth that build it up or make positive changes.. Destructive Process. Things that happen to the Earth that destroy or break down part of it. . Erosion. . Class 4 – . Outline:. Ch. 21, sections . 21.5-21.8. Wave . Interference . Constructive . and Destructive Interference . Thin-Film . Optical . Coatings . . . Interference . in 2 and 3 Dimensions . © 2015 Pearson Education, Inc.. Interference Along a Line. If . d. 1. and . d. 2. are the distances from the loudspeakers to the observer, their difference is called the . path-length difference.. Crests. Troughs. S. 1. P. S. 2. Crests. Troughs. S. 1. P. l. 1. l. 2. S. 2. Crests. Troughs. S. 1. P. l. 1. l. 2. S. 2. l. . = . l. 2. -. l. 1. Path length difference:. t . = . t. 2. - . t. 1. Travel time difference:.