# Interference of waves

Every thing has a dual nature. So if we take waves(consider light interference) as particles, exactly what happens during interference (both constructive and destructive)? Can you explain in easy words since I have not studied physics at the university level.

• Everything has a dual nature: I'm sorry, is that a universal principle? And to answer your question, we invoke the wavy nature of particles to explain interference, not the other way round. Waves in general (of sound, of light, of water) interfere, therefore when we observed that particles (such as the electron) produced the same interference patterns, we postulated the wave/particle duality. Mar 25, 2015 at 17:45
• It doesn't have to be only at the particle level. I have seen stadium "waves" (made of thousands of people) interact and cancel. Mar 25, 2015 at 17:51