Two in-phase speakers 2.0 m apart in a plane are emitting 1800 Hz sound waves into a room where the speed of sound is 340m/s . Is the point 4.0m in front of one of the speakers, perpendicular to the plane of the speakers, a point of maximum constructive interference, perfect destructive interference, or something in between? pick one of those 3 and say why:
1) This is the point of maximum constructive interference.
2) This is the point of perfect destructive interference. This point is something between maximum
3) constructive interference and perfect destructive interference.