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Question: Identifying constructive and destructive interference Identify the path length from each source to the point of interest. Compute the path-length difference. Find the wavelength, if it is not specified. If the path-length difference is a whole number of wavelengths , crests are aligned with crests and there is constructive interference. If the path-length difference is a whole number of wavelengths plus a half wavelength , crests are aligned with troughs and there is destructive interference. Follow these steps to solve this problem: Two identical loudspeakers, speaker 1 and speaker 2, are 2.0 apart and are emitting 1700- sound waves into a room where the speed of sound is 340 . Is the point 4.0 in front of speaker 1, perpendicular to the plane of the speakers, a point of maximum constructive interference, a point of perfect destructive interference, or something in between?

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