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Write difference between Fraunhofer diffraction and interference.
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Answers
Information about Fraunhofer diffraction:-
1. It is the phenomenon of superposition of two waves coming from two different parts of the same wave front.
2. All bright lines are not equally bright and equally wide.
3. Brightness and width goes on decreasing with the angle of diffraction.
4. Dark lines are perfectly dark. Their contrast with bright lines and width goes on decreasing with angle of diffraction.
5. In diffraction bands are few in number.
Information on interference are as follows:-
1. It is the phenomenon of superposition of two waves coming from two different coherent sources.
2. In interference pattern, all bright lines are equally bright and equally spaced.
3. All dark lines are totally dark.
4. In interference bands are large in number.
1.) It is the phenomenon of superposition of two waves coming from two different parts of the same wave front.
2. All bright lines are not equally bright and equally wide.
3. Brightness and width goes on decreasing with the angle of diffraction.
4. Dark lines are perfectly dark. Their contrast with bright lines and width goes on decreasing with angle of diffraction.
5. In diffraction bands are few in number.
Information on interference are as follows:-
1. It is the phenomenon of superposition of two waves coming from two different coherent sources.
2. In interference pattern, all bright lines are equally bright and equally spaced.
3. All dark lines are totally dark.
4. In interference bands are large in number.. It is the phenomenon of superposition of two waves coming from two different parts of the same wave front.
2. All bright lines are not equally bright and equally wide.
3. Brightness and width goes on decreasing with the angle of diffraction.
4. Dark lines are perfectly dark. Their contrast with bright lines and width goes on decreasing with angle of diffraction.
5. In diffraction bands are few in number.
Information on interference are as follows:-
1. It is the phenomenon of superposition of two waves coming from two different coherent sources.
2. In interference pattern, all bright lines are equally bright and equally spaced.
3. All dark lines are totally dark.
4. In interference bands are large in number.