Answer
409.2k+ views
Hint: Fraunhofer lines are actually the diffraction pattern that occurs in the limit of small Fresnel numbers. It is obtained if the source of light and screen are at infinite distance from the obstacle. The Fraunhofer lines have constant intensity.
Complete step by step answer:
Definition:
Diffraction of light is an optical phenomenon in which when a wave is obstructed by an obstacle, the rays bend around a sharp corner this results in formation of beautiful fringe or line patterns comprising maximum and minimum intensity. Depending upon the separation between the source, obstacle and the screen the diffraction are of two kinds (i) Fresnel and (ii) Fraunhofer diffraction.
(i) Fresnel diffraction lines will form when the source of light and the screen are at finite distance from the obstacle.
(ii) The Fraunhofer diffraction line Patterns occur when the source of light and the screen are at finite distance from the obstacle on the spherical surfaces with constant intensity.
In Fraunhofer Plane line diffraction pattern wavefronts are converged by the means of a convex lens to produce a diffraction pattern.
Note: To obtain the Fraunhofer diffraction pattern, the incident wavefront must be plane and the diffracted light should be collected on the screen with the help of a lens. Thus, Fraunhofer diffraction line pattern will form with the help of: (i) Single slit obstacle (ii) Fraunhofer diffraction at circular aperture and (iii) Fraunhofer diffraction at the double slit.
Complete step by step answer:
Definition:
Diffraction of light is an optical phenomenon in which when a wave is obstructed by an obstacle, the rays bend around a sharp corner this results in formation of beautiful fringe or line patterns comprising maximum and minimum intensity. Depending upon the separation between the source, obstacle and the screen the diffraction are of two kinds (i) Fresnel and (ii) Fraunhofer diffraction.
(i) Fresnel diffraction lines will form when the source of light and the screen are at finite distance from the obstacle.
(ii) The Fraunhofer diffraction line Patterns occur when the source of light and the screen are at finite distance from the obstacle on the spherical surfaces with constant intensity.
![seo images](https://www.vedantu.com/question-sets/13c64bcd-3ac2-4945-a105-6ee20ddeeec33228735460522689356.png)
![seo images](https://www.vedantu.com/question-sets/2feb2a8d-b926-48e6-97b3-34061dd5db777351212690266524993.png)
In Fraunhofer Plane line diffraction pattern wavefronts are converged by the means of a convex lens to produce a diffraction pattern.
Note: To obtain the Fraunhofer diffraction pattern, the incident wavefront must be plane and the diffracted light should be collected on the screen with the help of a lens. Thus, Fraunhofer diffraction line pattern will form with the help of: (i) Single slit obstacle (ii) Fraunhofer diffraction at circular aperture and (iii) Fraunhofer diffraction at the double slit.
Recently Updated Pages
Mark and label the given geoinformation on the outline class 11 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
When people say No pun intended what does that mea class 8 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Name the states which share their boundary with Indias class 9 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give an account of the Northern Plains of India class 9 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Change the following sentences into negative and interrogative class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Advantages and disadvantages of science
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Trending doubts
Bimbisara was the founder of dynasty A Nanda B Haryanka class 6 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Which are the Top 10 Largest Countries of the World?
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
10 examples of evaporation in daily life with explanations
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give 10 examples for herbs , shrubs , climbers , creepers
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
How do you graph the function fx 4x class 9 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference Between Plant Cell and Animal Cell
![arrow-right](/cdn/images/seo-templates/arrow-right.png)