Difference Between Interference And Diffraction

Interference Diffraction
Interference takes place between two separate wave fronts originating from two coherent sources. Diffraction takes place when secondary wavelets originating from different point of the same wavefront.
Fringe width may or may not be the same. Fringe are not of the same width.
All maximas are of same intensity. Maximas are of varying intensity.
The minimum intensity regions are usually almost perfectly dark. The minimum intensity regions are not perfectly dark.

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