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In a young’s double slit experiment, the central bright fringe can be identified by
- a)as it is wider than other bright fringes
- b)using white light instead of monochromatic light
- c)as it is has greater intensity than other bright fringes
- d)as it is narrower than other bright fringes
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
In a youngs double slit experiment, the central bright fringe can be i...
The correct answer to the given question is option 'B': using white light instead of monochromatic light.
Explanation:
In a Young's double-slit experiment, a beam of light is passed through two closely spaced slits, creating an interference pattern on a screen placed behind the slits. This pattern consists of alternating bright and dark fringes.
To identify the central bright fringe, we need to understand the phenomenon of interference. Interference occurs when two or more waves overlap and interact with each other. In the case of the double-slit experiment, the light passing through each slit acts as a source of waves, and these waves interfere with each other.
When monochromatic light (light of a single wavelength) is used in the experiment, the interference pattern consists of a series of bright and dark fringes. The central bright fringe is the brightest fringe in the pattern and is located at the center of the pattern.
Now, the central bright fringe can be identified by using white light instead of monochromatic light. Here's why:
1. Wider than other bright fringes:
If the central bright fringe was wider than other bright fringes, option 'A' would be correct. However, this is not the case. The width of the bright fringes is determined by the wavelength of the light used. In monochromatic light, all the bright fringes have the same width.
2. Greater intensity than other bright fringes:
If the central bright fringe had greater intensity than other bright fringes, option 'C' would be correct. However, in the case of the double-slit experiment, all the bright fringes have the same intensity. The intensity of the fringes is determined by the amplitude of the interfering waves.
3. Narrower than other bright fringes:
If the central bright fringe was narrower than other bright fringes, option 'D' would be correct. However, this is not the case. The width of the bright fringes is determined by the wavelength of the light used. In monochromatic light, all the bright fringes have the same width.
4. Using white light instead of monochromatic light:
When white light is used in the double-slit experiment, the interference pattern consists of a series of colored fringes. The central bright fringe appears white because it is a combination of all the colors present in the white light. The other bright fringes appear colored because they are a combination of specific colors from the white light.
Therefore, by using white light instead of monochromatic light, we can easily identify the central bright fringe as the one that appears white in the interference pattern. This is the correct answer, option 'B'.
Explanation:
In a Young's double-slit experiment, a beam of light is passed through two closely spaced slits, creating an interference pattern on a screen placed behind the slits. This pattern consists of alternating bright and dark fringes.
To identify the central bright fringe, we need to understand the phenomenon of interference. Interference occurs when two or more waves overlap and interact with each other. In the case of the double-slit experiment, the light passing through each slit acts as a source of waves, and these waves interfere with each other.
When monochromatic light (light of a single wavelength) is used in the experiment, the interference pattern consists of a series of bright and dark fringes. The central bright fringe is the brightest fringe in the pattern and is located at the center of the pattern.
Now, the central bright fringe can be identified by using white light instead of monochromatic light. Here's why:
1. Wider than other bright fringes:
If the central bright fringe was wider than other bright fringes, option 'A' would be correct. However, this is not the case. The width of the bright fringes is determined by the wavelength of the light used. In monochromatic light, all the bright fringes have the same width.
2. Greater intensity than other bright fringes:
If the central bright fringe had greater intensity than other bright fringes, option 'C' would be correct. However, in the case of the double-slit experiment, all the bright fringes have the same intensity. The intensity of the fringes is determined by the amplitude of the interfering waves.
3. Narrower than other bright fringes:
If the central bright fringe was narrower than other bright fringes, option 'D' would be correct. However, this is not the case. The width of the bright fringes is determined by the wavelength of the light used. In monochromatic light, all the bright fringes have the same width.
4. Using white light instead of monochromatic light:
When white light is used in the double-slit experiment, the interference pattern consists of a series of colored fringes. The central bright fringe appears white because it is a combination of all the colors present in the white light. The other bright fringes appear colored because they are a combination of specific colors from the white light.
Therefore, by using white light instead of monochromatic light, we can easily identify the central bright fringe as the one that appears white in the interference pattern. This is the correct answer, option 'B'.
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Community Answer
In a youngs double slit experiment, the central bright fringe can be i...
When we use white light, the central bright will have light from all wavelengths as none of them cancel out. Hence the central bright fringe appears white.
For other bright fringes, depending on the wavelength of light constructive interference will not take place for certain wavelengths. Hence they will not be white, rather will be coloured, hence differentiated from central fringe.
For other bright fringes, depending on the wavelength of light constructive interference will not take place for certain wavelengths. Hence they will not be white, rather will be coloured, hence differentiated from central fringe.
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In a youngs double slit experiment, the central bright fringe can be identified bya)as it is wider than other bright fringesb)using white light instead of monochromatic lightc)as it is has greater intensity than other bright fringesd)as it is narrower than other bright fringesCorrect answer is option 'B'. Can you explain this answer?
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In a youngs double slit experiment, the central bright fringe can be identified bya)as it is wider than other bright fringesb)using white light instead of monochromatic lightc)as it is has greater intensity than other bright fringesd)as it is narrower than other bright fringesCorrect answer is option 'B'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about In a youngs double slit experiment, the central bright fringe can be identified bya)as it is wider than other bright fringesb)using white light instead of monochromatic lightc)as it is has greater intensity than other bright fringesd)as it is narrower than other bright fringesCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a youngs double slit experiment, the central bright fringe can be identified bya)as it is wider than other bright fringesb)using white light instead of monochromatic lightc)as it is has greater intensity than other bright fringesd)as it is narrower than other bright fringesCorrect answer is option 'B'. Can you explain this answer?.
In a youngs double slit experiment, the central bright fringe can be identified bya)as it is wider than other bright fringesb)using white light instead of monochromatic lightc)as it is has greater intensity than other bright fringesd)as it is narrower than other bright fringesCorrect answer is option 'B'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about In a youngs double slit experiment, the central bright fringe can be identified bya)as it is wider than other bright fringesb)using white light instead of monochromatic lightc)as it is has greater intensity than other bright fringesd)as it is narrower than other bright fringesCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a youngs double slit experiment, the central bright fringe can be identified bya)as it is wider than other bright fringesb)using white light instead of monochromatic lightc)as it is has greater intensity than other bright fringesd)as it is narrower than other bright fringesCorrect answer is option 'B'. Can you explain this answer?.
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In a youngs double slit experiment, the central bright fringe can be identified bya)as it is wider than other bright fringesb)using white light instead of monochromatic lightc)as it is has greater intensity than other bright fringesd)as it is narrower than other bright fringesCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for In a youngs double slit experiment, the central bright fringe can be identified bya)as it is wider than other bright fringesb)using white light instead of monochromatic lightc)as it is has greater intensity than other bright fringesd)as it is narrower than other bright fringesCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of In a youngs double slit experiment, the central bright fringe can be identified bya)as it is wider than other bright fringesb)using white light instead of monochromatic lightc)as it is has greater intensity than other bright fringesd)as it is narrower than other bright fringesCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
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