Two loudspeakers are placed 3.00meters apart, as shown in thefigure . They emit 494 Hz sounds, in phase. A microphoneis placed 3.20 meters distant from a point midway between the twospeakers, where an intensity maximum is recorded.
How far must the microphone be moved to the right to find thefirst intensity minimum?
Suppose the speakers are reconnected so that the 494Hz sounds they emit are exactly out of phase. At whatpositions are the intensity maximum and minimum now?