Hey I have a problem that I am having trouble starting, any tips on where to start would be great.
Quote:
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Two loudspeakers are located 10.0 ft apart on an open-air stage. A listener is seated 60.0 ft from one and 64.9 ft from the other. A signal generator drives the two speakers in phase with the same amplitude and frequency. The frequency is slowly varied through the audible range (20-20,000_Hz). What is the lowest frequency (in Hz) at which the listener will hear a minimum signal because of destructive interference? (Use as the speed of sound 347.8 m/s).
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I'm sure that I need to use Path Length Difference here, but I'm not sure how to apply it.
[LaTeX Error: Can't write to directory] For totally destructive interference. My LaTeX won't display for some reason? PLD = 0.5n + lambda
Just a tip please on how to start, thanks!
Spatial Interference Problem 
Linear Mode
