Question

What is the effective distance between the source of light and the screen in fraunhofer diffraction

Answer 1

Answer:

In Fraunhofer Diffraction, the source of light and the screen are effectively placed at infinite distance. Two convex lenses are used for achieving such a condition.

Answer 2

Fraunhoffer diffraction says that when the diffraction pattern is observed at a great distance from the diffracting object, as well as when it is viewed at the focal plane of an imaging lens, its equation is employed to represent the diffraction of waves.

• The light source and the screen are effectively positioned at an infinite distance in Fraunhofer Diffraction. To get this result, two convex lenses are used in this diffraction.