Question

In Fraunhofer diffraction, the incident wave front should be

(A) Elliptical
(B) Plane
(C) Spherical
(D) Cylindrical​

Answer 1

Answer:(C) Spherical

In optics, the Fraunhofer diffraction equation is used to model the diffraction of waves when the diffraction pattern is viewed at a long distance from the diffracting object, and also when it is viewed at the focal plane of an imaging lens.

Answer 2

Answer:

( C ) Spherical ✔

$\: \: \: \: \: \: \: \: \:$