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Homework Help: Destructive Interference of a Sound Wave

  1. Nov 10, 2005 #1


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    A sound wave with intensity 25 mW/m^2 interferes destructively with a sound wave with intensity 28 mW/m^2. What is the intensity of the superposition of the two?

    I've read through this section in my textbook three times now and I still have no clue as to how to go about figuring this out. Can you help me?
  2. jcsd
  3. Nov 10, 2005 #2
    What do you know about destructive interference? What happens between the two waves?
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