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Inference refers to the interaction of two or more waves. Waves can be categorized into two general categories -- longitudinal and transverse. The first works on compressions and rarefactions. The latter is composed of crests and troughs. The type doesn't matter for your question.
Interference can be either constructive or destructive. In constructive interference two different waves interact with each other in a way that causes their crests and/or troughs to line up. This causes an increase in amplitude. For example, if wave #1 has an amplitude of 10 and wave #2 has an amplitude of 5, the constructive interference results in an amplitude of 15. Destructive interference works the same, but as a subtraction problem. A wave's crest will interfere with another wave's trough, which results in a decrease of amplitude. So using the above waves again, the resulting amplitude would be 10-5=5.
Interference of waves is said to be an event in which 2 waves join together to form another wave of either higher or lower amplitude. These waves coordinate with another and come from the same source and / or have nearly the same frequency. Interference can be seen with all types of waves, example light, acoustic, matter etc.
What is Interference?
Interference is the situation that occurs when two waves meet traveling through the same medium. Also known as wave interference in simple words.
Where as wave can be defined as the disturbance traveling through a medium from one location to another.
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