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What is the colour corresponding to the wavelength of light emitted when the electron in a hydrogen atom undergoes transition from n = 4 to n = 2?
- a)Blue
- b)Red
Correct answer is option ''. Can you explain this answer?
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What is the colour corresponding to the wavelength of light emitted wh...
Colour corresponding to this wavelength is blue.
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The electron transition from n=4 to n=2 in a hydrogen atom corresponds to the emission of a photon with a specific wavelength. This wavelength can be calculated using the Rydberg formula:
1/λ = R(1/n2 - 1/n1)
where λ is the wavelength of the emitted photon, R is the Rydberg constant (1.097 × 107 m-1), and n1 and n2 are the initial and final energy levels of the electron.
Substituting n1 = 4 and n2 = 2, we get:
1/λ = R(1/22 - 1/42) = 3R/8
Solving for λ, we get:
λ = 8/3R = 656.3 nm
This wavelength corresponds to the red region of the spectrum, so the correct answer is option (b) Red.
1/λ = R(1/n2 - 1/n1)
where λ is the wavelength of the emitted photon, R is the Rydberg constant (1.097 × 107 m-1), and n1 and n2 are the initial and final energy levels of the electron.
Substituting n1 = 4 and n2 = 2, we get:
1/λ = R(1/22 - 1/42) = 3R/8
Solving for λ, we get:
λ = 8/3R = 656.3 nm
This wavelength corresponds to the red region of the spectrum, so the correct answer is option (b) Red.
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What is the colour corresponding to the wavelength of light emitted when the electron in a hydrogen atom undergoes transition from n = 4 to n = 2?a)Blueb)RedCorrect answer is option ''. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about What is the colour corresponding to the wavelength of light emitted when the electron in a hydrogen atom undergoes transition from n = 4 to n = 2?a)Blueb)RedCorrect answer is option ''. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the colour corresponding to the wavelength of light emitted when the electron in a hydrogen atom undergoes transition from n = 4 to n = 2?a)Blueb)RedCorrect answer is option ''. Can you explain this answer?.
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