I want help for the given question:
Question: The speed of sound ion air is 320 m/s. If two speakers are set up 1.2 meters apart and both generate a 694 Hz tone,
A- Find the angle in degrees away from the center line between the two speakers where the there is a first order minimum in the sound from the speakers.
Show how you get the answer, so that I can better understand how to do it. Thanks.