Chemistry - Atomic Structure Question with Solution | TestHub

ChemistryAtomic StructureMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasysingle choice

If $α = \frac{h}{4 π^{2} m e^{2}},$ then the correct expression to calculate of the circumference of the first orbit of hydrogen atom is

Options:

Answer:

Solution:

circumference $= 2 π r$
$2 \times π \times \frac{n^{2} h^{2}}{4 π^{2} m Z e^{2}}$
$n = 1$
$Z = 1$
and $\frac{h}{4 π^{2} {me}^{2}} = α$
Thus, $2 \times π \times r$
$= \sqrt{4} π hα$
or $\sqrt{4 h^{2}} πα$

Stream:NTA_ABHYASSubject:ChemistryTopic:Atomic StructureSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2020

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