Guest

What is Fresnel Distance?

What is Fresnel Distance?
 

Grade:12

3 Answers

SAIMANIKANTA
263 Points
7 years ago
The distance beyond which divergence of the beam of width ‘a’ become significant is called
Fresnel distance
 
SAI SANDY
153 Points
6 years ago
The distance beyond which divergence of the beam of width ‘a’ become significant is called
Fresnel distance .
SAI SARDAR
1700 Points
6 years ago
Dear Kajal,
               An Aperture of size illuminated by a parallel beam sends diffracted beam (the central maxima) in angular width approximately . Travelling a distance , it aquires the width due to diffraction. The distance at which this width equals the size of the aperture is called the fresnel distance.

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free