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Coherence and Interference
Introduction
Coherence Ø Coherence and Interference are two ideal wave features that complement each other.The wave interference do occur but for it to be considered constructive,it needs the coherence of some of the physical quantities of the waves involved; the wavelength, amplitude, and phase of the constituent wave forms must be identical.The most distinct concept of coherence in waves requires that the wave are in phase,their peaks are alinged with each other.