Two loudspeakers are 2.5 m apart. A person stands 2.9 m from one speaker and 4.0 m from the other. Assume the air temperature is 20°C.
a) What is the lowest frequency at which destructive interference will occur at this point?
(b) Calculate the next two frequencies that also result in destructive interference at this point.
not sure if these apply:
The Attempt at a Solution
i have no idea how to get a start on this problem