Chapter 14

# Chapter 14 - CHAPTER 14 14.2 Interference is the result of...

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CHAPTER 14 14.2 Interference – is the result of two or more waves meeting each other at a particular point in space at the same time Principle of Superposition – the net wave that forms at the point of interference has an amplitude equal to the vector sum of all wave amplitudes that come together at that point Constructive Interference – resultant wave’s amplitude increases Destructive Interference – resultant wave’s amplitude decreases 14.3 Absorption – is the process whereby the sounds energy is quickly dissipated by being transformed into other forms of energy (sound proof room – anechoic chamber – does not allow sound to escape – absorbed) Transmission – passing of sound energy from medium to another at a medium boundary = = v1v2 fλ1fλ2 λ1λ2 Reflection – the wavelength of the returning/reflected wave is not altered. However, when a sound wave is reflected at a solid boundary, the reflected wave pulse has its phase shifted by 12λ 14.4 (WORKSHEET) Standing Waves

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## This note was uploaded on 05/29/2010 for the course SCI 5421 taught by Professor Russel during the Spring '10 term at Morton College.

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Chapter 14 - CHAPTER 14 14.2 Interference is the result of...

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