What is Fresnel Distance?
What is Fresnel Distance?
kajal , 10 Years ago
Grade 12
Wave Optics> What is Fresnel Distance?...
3 Answers
SAIMANIKANTA
The distance beyond which divergence of the beam of width ‘a’ become significant is called
Fresnel distance
Fresnel distance
Approved Last Activity: 10 Years ago
SAI SANDY
The distance beyond which divergence of the beam of width ‘a’ become significant is called
Fresnel distance .
Fresnel distance .
SAI SARDAR
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.
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