First, let's briefly discuss diffraction and
interference.
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 through an aperture into the region
of geometrical shadow of the obstacle or aperture.
Interference is a phenomenon
in which two waves superpose to form a resultant wave of greater, lower
amplitude.
Though all wave such as light, sound, and water
wave has the property of diffraction and interference, diffraction and
interference of water wave are easily seen from nature.
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