1. The problem statement, all variables and given/known data You're midway between two loudspeakers producing sound with the same 83.5cm wavelength, and you experience constructive interference. How far must you move toward one speaker in order to find a dead spot? 2. Relevant equations 3. The attempt at a solution I have no clue what to do. I've done all the other problems on my HW just fine..but not this.... All i have is the wavelength. not sure what to do..I'm sure it's simple....probably haven't thought about it clearly..