Physics, asked by anjalisharma7680, 10 months ago

What is a fresnel distance?
What is condition for it?

Answers

Answered by rohit3983

Answer:

Hey mate ♥️♥️♥️......

Fresnel distance describes the distance at which spread due to diffraction becomes comparable to the width of the slit or not. This is the boundary of ray optics and wave optics. For distances << zf : Spreading due to diffraction is smaller compared to size of the beam then the ray optics is valid.

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