In a location where the speed of sound is 354 m/s, a 2000 Hz sound wave impinges on two slits 30cm apart.
a) At what angle is the first maximum located?
b) If the sound wave is replaced by 2.00cm microwaves, what slit separation gives the same angle for the first maximum?
c) If the slit separation is 1.00 µm, what frequency light provides the same first maximum angle?