Question

What are the types of diffraction and write the differences between them.

Answer 1

hey bro..

there are two types of diffraction

Fresnel diffraction

Fraunhoffer diffraction



difference


Comparison of Fresnel and Fraunhoffer Diffraction

CharacteristicsFresnel DiffractionFraunhofer DiffractionSurface of calculationFresnel diffraction occurs on spherical surfaces.Fraunhofer diffraction patterns on flat surfaces.Diffraction patternShape and intensity of diffraction pattern change as the waves propagate downstream of the scattering source.Shape and intensity remain constant.Movement of diffraction patternMove along the corresponding shift in the object.Remains in a fixed position.Observation distanceScreen placed at finite distance from an object.Infinite observation distance.Wave frontsCylindrical wave fronts.Planar wave fronts.