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Chemistry - Atomic Structure Question with Solution | TestHub

ChemistryAtomic StructureSpectrumEasy2 minPYQ_2020

ChemistryEasysingle choice

Calculate the wavelength of the radiation emitted when in a hydrogen atom electron falls from infinity to stationary state 1 (Rydberg constant $= 1.097 \times 1 0^{7} m^{- 1}$ )

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Answer:

Solution:

$\frac{1}{λ} = R [\frac{1}{n_{1}^{2}} - \frac{1}{n_{2}^{2}}] \frac{1}{λ} = 1.097 \times 1 0^{7} m^{- 1} [\frac{1}{1^{2}} - \frac{1}{\infty^{2}}]$
$∴ λ = 91 \times 1 0^{- 9} m$
We know $1 0^{- 9} = 1 n m$ So $λ = 91 n m$

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Atomic StructureSubtopic:Spectrum

⏱ 2mℹ️ Source: PYQ_2020

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