Physics 1402A/B Lecture Notes - Lecture 14: Standing Wave, Boundary Value Problem, The Crests
30 Dec 2018
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Document Summary
Use the wave equation to determine wave properties. Describe the conditions that lead to standing waves. Describe interference and reflection of waves with an open or a fixed end. We can have more than one wave travelling in a medium at the same time. This can lead to interference when the two waves collide. Constructive interference: the crests of two waves coincide, resulting in a larger wave. After the waves interfere, they continue to travel on their paths. When a wave reaches a boundary condition, it is absorbed, transmitted and/or reflected. Absorption and transmission depend on material properties and we won"t deal with them. When a wave reaches a boundary, it can reflect back the way it came. There are two possible circumstances for the behaviour of the reflected wave: This happens when the wave is open ended. A standing wave is a wave that does not travel left to right, but essentially stands still.
