Question

what is diffraction? state types of diffraction

Answer 1

Diffraction refers to various phenomena that occur when a wave encounters an obstacle or a slit. ... In classical physics, the diffractionphenomenon is described as theinterference of waves according to the Huygens–Fresnel principle

Answer 2

Diffraction refers to various phenomena that occur when a wave encounters an obstacle or a slit. There are two different types of diffraction:- 1) Frensel diffraction - produced when light from a point source meets an obstacle, the waves are spherical and the pattern observed is a fringed image of the object. 2) Fraunhofer diffraction - occurs with plain wave fronts with the objects effectively at infinity.