Explain the phenomenon of interference and how ... - SS2 Physics Waves and Sound Question

Interference is the interaction of two or more waves to produce a resultant wave. It occurs when waves meet at the same point in space and combine either constructively or destructively. Constructive interference happens when waves of the same frequency and amplitude meet in phase, resulting in reinforcement and an increase in amplitude. Destructive interference occurs when waves of the same frequency and amplitude meet out of phase, leading to cancellation and a decrease in amplitude. When waves interfere, they form interference patterns such as bright and dark fringes or bands. Examples of interference patterns include the double-slit experiment and the patterns seen in soap bubbles or thin films.