ix. In what areas (black, white or grey) is destructive interference occurring? How is destructive interference created in this scenario? (Use the words crest, trough, and wave.) Write these observations in your notes. [ Pause the window. [i Drag the tape measure onto your window and use it to measure the wavelength. (You may want to see p.426-427 of your textbook.) [Li What is the wavelength of the sound waves emitted by the speakers? asIG LIZZA 21 EGG AKZY BY Lizza YZICO