Interference refers to the phenomenon where two
waves of the same kind overlap to produce a resultant wave of greater, lower,
or the same amplitude.
Diffraction is defined as the bending of a wave
around the corners of an obstacle or aperture.
Interference
may be defined as waves emerging from two different sources, producing
different wave fronts while Diffraction
on the other hand can be termed as secondary waves that emerge from the
different parts of the same wave.
In interference
the intensity of all the positions on maxima are of similar intensity in
interference while In
diffraction, there is a variance of the intensity of positions.
If
the number of sources is few such as two sources, then they are referred to as
interference sources while if the number of sources is
many, that is more than two then it is referred to as diffraction sources.
