Question

The diffracted pattern consists of a central bright spot surrounded by alternative concentric

1 point

bright & dark rings.

rings

fringes​

Answer 1

Answer:

Fraunhofer Diffraction. Fraunhofer diffraction is the type of diffraction that occurs in the limit of small Fresnel number . In Fraunhofer diffraction, the diffraction pattern is independent of the distance to the screen, depending only on the angles to the screen from the aperture.

Hope it is correct