Sound - Interference of Sound Waves

Question 1

interference of sound waves

Answer 1

• Two traveling waves which exist in the same medium will interfere with each other. If their amplitudes add, the interference is said to be constructive interference, and destructive interference if they are “out of phase” and subtract. Patterns of destructive and constructive interference may lead to “dead spots” and “live spots” in auditorium acoustics.
• Interference of incident and reflected waves is essential to the production of resonant standing waves.
• Interference has far reaching consequences in sound because of the production of “beats” between two frequencies which interfere with each other.