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Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsAtomic structureEasy2 minPYQ_2020

PhysicsEasysingle choice

According to Bohr's theory, the time average magnetic moment of a hydrogen atom due to the motion of the electron in $n^{th}$ orbit is proportional to ( $n =$ principal quantum number)

Options:

Answer:

Solution:

$M = {πr}^{2} I$
$= \frac{{πr}^{2} e}{T}$
$= \frac{{πr}^{2} ev}{2 πr}$
$M = \frac{I}{2} erv$
Now, $v \propto \frac{1}{n}$ and $r \propto n^{2}$
Hence, $M \propto n$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Modern PhysicsSubtopic:Atomic structure

⏱ 2mℹ️ Source: PYQ_2020

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