Describe how diffraction differs from interference.
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Constructive interference occurs when the phase difference between the waves is a multiple of 2π, whereas destructive interference occurs when the difference is π, 3π, 5π, etc.Diffraction refers to various phenomena that occur when a wave encounters an obstacle.
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The defration mean Diffraction refers to various phenomena that occur when a wave encounters an obstacle or a slit. It is defined as the bending of waves around the corners of an obstacle or aperture into the region of geometrical shadow of the obstacle. And the the interference means that the combination of two or more electromagnetic waveforms to form a resultant wave in which the displacement is either reinforced or cancelled
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