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Fluorescence is
- a)it consists of accelerated atoms/molecules striking suitable material
- b)it consists only of atoms going into stable excited states
- c)what happens in a fluorescent lamp
- d)it consists of a molecule, atom or nanostructure relaxing to its ground state by emitting a photon of light after being excited to a higher quantum state by some type of energy
Correct answer is option 'D'. Can you explain this answer?
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Fluorescence isa)it consists of accelerated atoms/molecules striking s...
Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation. It is a form of luminescence. In most cases, the emitted light has a longer wavelength, and therefore lower energy, than the absorbed radiation. The most striking example of fluorescence occurs when the absorbed radiation is in the ultraviolet region of the spectrum, and thus invisible to the human eye, while the emitted light is in the visible region, which gives the fluorescent substance a distinct color that can be seen only when exposed to UV light. Fluorescent materials cease to glow nearly immediately when the radiation source stops, unlike phosphorescent materials, which continue to emit light for some time after.
Most Upvoted Answer
Fluorescence isa)it consists of accelerated atoms/molecules striking s...
Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation. It is a form of luminescence. In most cases, the emitted light has a longer wavelength, and therefore lower energy, than the absorbed radiation...
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Fluorescence isa)it consists of accelerated atoms/molecules striking s...
Fluorescence: Explained
Introduction:
Fluorescence refers to a phenomenon in which a molecule, atom, or nanostructure absorbs energy and subsequently emits light at a longer wavelength. This process occurs when the excited state of the material relaxes to its ground state, emitting a photon of light in the process. Among the given options, option 'D' correctly describes fluorescence.
Explanation:
Fluorescence involves several key steps that contribute to the emission of light. Let's explore these steps in detail:
1. Energy Absorption:
The process of fluorescence begins with the absorption of energy by a molecule, atom, or nanostructure. This energy can be provided by various sources such as light, heat, or electricity. When the material absorbs this energy, it promotes an electron from its ground state to a higher energy state, known as an excited state.
2. Excitation:
Once the material is in the excited state, it is considered to be in an unstable condition. This means that the electron occupying the higher energy level is not in its equilibrium position. To achieve stability, the material undergoes relaxation, releasing the excess energy it acquired during excitation.
3. Relaxation:
During relaxation, the excited material transitions back to its ground state. This process involves the electron returning to its original energy level. To accomplish this, the material emits a photon of light, which carries away the excess energy. The emitted light typically has a longer wavelength than the absorbed energy, resulting in a shift towards lower energy and a different color.
4. Photon Emission:
The emitted photon carries the excess energy away from the material, allowing it to return to its stable state. This emission of light is characteristic of fluorescence and can be observed as a distinct glow or fluorescence. The emitted light may have different colors depending on the specific material and the energy it absorbed during excitation.
Conclusion:
Fluorescence is a fascinating phenomenon that occurs when a molecule, atom, or nanostructure absorbs energy and subsequently emits light of a longer wavelength. The process involves the material transitioning from an excited state to its ground state through relaxation, resulting in the emission of a photon. Understanding fluorescence is crucial in various fields, including chemistry, biology, and materials science, as it enables the detection and analysis of fluorescent molecules and materials.
Introduction:
Fluorescence refers to a phenomenon in which a molecule, atom, or nanostructure absorbs energy and subsequently emits light at a longer wavelength. This process occurs when the excited state of the material relaxes to its ground state, emitting a photon of light in the process. Among the given options, option 'D' correctly describes fluorescence.
Explanation:
Fluorescence involves several key steps that contribute to the emission of light. Let's explore these steps in detail:
1. Energy Absorption:
The process of fluorescence begins with the absorption of energy by a molecule, atom, or nanostructure. This energy can be provided by various sources such as light, heat, or electricity. When the material absorbs this energy, it promotes an electron from its ground state to a higher energy state, known as an excited state.
2. Excitation:
Once the material is in the excited state, it is considered to be in an unstable condition. This means that the electron occupying the higher energy level is not in its equilibrium position. To achieve stability, the material undergoes relaxation, releasing the excess energy it acquired during excitation.
3. Relaxation:
During relaxation, the excited material transitions back to its ground state. This process involves the electron returning to its original energy level. To accomplish this, the material emits a photon of light, which carries away the excess energy. The emitted light typically has a longer wavelength than the absorbed energy, resulting in a shift towards lower energy and a different color.
4. Photon Emission:
The emitted photon carries the excess energy away from the material, allowing it to return to its stable state. This emission of light is characteristic of fluorescence and can be observed as a distinct glow or fluorescence. The emitted light may have different colors depending on the specific material and the energy it absorbed during excitation.
Conclusion:
Fluorescence is a fascinating phenomenon that occurs when a molecule, atom, or nanostructure absorbs energy and subsequently emits light of a longer wavelength. The process involves the material transitioning from an excited state to its ground state through relaxation, resulting in the emission of a photon. Understanding fluorescence is crucial in various fields, including chemistry, biology, and materials science, as it enables the detection and analysis of fluorescent molecules and materials.
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Fluorescence isa)it consists of accelerated atoms/molecules striking suitable materialb)it consists only of atoms going into stable excited statesc)what happens in a fluorescent lampd)it consists of a molecule, atom or nanostructure relaxing to its ground state by emitting a photon of light after being excited to a higher quantum state by some type of energyCorrect answer is option 'D'. Can you explain this answer?
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Fluorescence isa)it consists of accelerated atoms/molecules striking suitable materialb)it consists only of atoms going into stable excited statesc)what happens in a fluorescent lampd)it consists of a molecule, atom or nanostructure relaxing to its ground state by emitting a photon of light after being excited to a higher quantum state by some type of energyCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Fluorescence isa)it consists of accelerated atoms/molecules striking suitable materialb)it consists only of atoms going into stable excited statesc)what happens in a fluorescent lampd)it consists of a molecule, atom or nanostructure relaxing to its ground state by emitting a photon of light after being excited to a higher quantum state by some type of energyCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Fluorescence isa)it consists of accelerated atoms/molecules striking suitable materialb)it consists only of atoms going into stable excited statesc)what happens in a fluorescent lampd)it consists of a molecule, atom or nanostructure relaxing to its ground state by emitting a photon of light after being excited to a higher quantum state by some type of energyCorrect answer is option 'D'. Can you explain this answer?.
Fluorescence isa)it consists of accelerated atoms/molecules striking suitable materialb)it consists only of atoms going into stable excited statesc)what happens in a fluorescent lampd)it consists of a molecule, atom or nanostructure relaxing to its ground state by emitting a photon of light after being excited to a higher quantum state by some type of energyCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Fluorescence isa)it consists of accelerated atoms/molecules striking suitable materialb)it consists only of atoms going into stable excited statesc)what happens in a fluorescent lampd)it consists of a molecule, atom or nanostructure relaxing to its ground state by emitting a photon of light after being excited to a higher quantum state by some type of energyCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Fluorescence isa)it consists of accelerated atoms/molecules striking suitable materialb)it consists only of atoms going into stable excited statesc)what happens in a fluorescent lampd)it consists of a molecule, atom or nanostructure relaxing to its ground state by emitting a photon of light after being excited to a higher quantum state by some type of energyCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Fluorescence isa)it consists of accelerated atoms/molecules striking suitable materialb)it consists only of atoms going into stable excited statesc)what happens in a fluorescent lampd)it consists of a molecule, atom or nanostructure relaxing to its ground state by emitting a photon of light after being excited to a higher quantum state by some type of energyCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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Fluorescence isa)it consists of accelerated atoms/molecules striking suitable materialb)it consists only of atoms going into stable excited statesc)what happens in a fluorescent lampd)it consists of a molecule, atom or nanostructure relaxing to its ground state by emitting a photon of light after being excited to a higher quantum state by some type of energyCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Fluorescence isa)it consists of accelerated atoms/molecules striking suitable materialb)it consists only of atoms going into stable excited statesc)what happens in a fluorescent lampd)it consists of a molecule, atom or nanostructure relaxing to its ground state by emitting a photon of light after being excited to a higher quantum state by some type of energyCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Fluorescence isa)it consists of accelerated atoms/molecules striking suitable materialb)it consists only of atoms going into stable excited statesc)what happens in a fluorescent lampd)it consists of a molecule, atom or nanostructure relaxing to its ground state by emitting a photon of light after being excited to a higher quantum state by some type of energyCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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