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Learning objects 2

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Sabrina Wei

Two people use a sound machine to create circular waves of the same frequency, resulting in an interference pattern of crests and troughs. The document asks the reader to determine if points A, B, C, and D experience constructive or destructive interference, and asks the path difference and frequencies if the observers position is (5,1) and the frequencies are 536Hz and 543Hz.

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Two people are creating circular waves from a sound machine, at the same frequency. The wave interference creates a pattern like the one shown above. The thicker lines represent the crests and the thin lines represent the troughs. Determine whether constructive or destructive interference happens at each indicated point. A: B: C: D: Assume that an observer is located at (x,y)= (5,1) What would the path difference be? Assume that the frequencies are now different, one at 536Hz and another at 543Hz. What is the frequency that we hear? What is the beat frequency?
Learning objects 2

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Learning objects 2

  • 1. Two people are creating circular waves from a sound machine, at the same frequency. The wave interference creates a pattern like the one shown above. The thicker lines represent the crests and the thin lines represent the troughs. Determine whether constructive or destructive interference happens at each indicated point. A: B: C: D: Assume that an observer is located at (x,y)= (5,1) What would the path difference be? Assume that the frequencies are now different, one at 536Hz and another at 543Hz. What is the frequency that we hear? What is the beat frequency?