Question

In Fraunhofer diffraction, the incident wave front should be 
ans:
Plane

Elliptical

Cylindrical

Spherica

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Answer 1

Answer:

2

Explanation:

Answer 2

In Fraunhofer diffraction, the incident wavefront should be planar(plane).

• The formation of light by the plane waves has occurred when the screen is reached in the  Fraunhofer diffraction.
• In Fraunhofer diffraction, the distance from the source is long.

• In Fraunhofer diffraction, a fringe that is bright can be seen along the axis, and with that an alternating dark fringe and bright fringe on each side.

• The wavefronts in Fraunhofer diffraction is appeared to be planar at the aperture.