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Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsAtomic structureMedium2 minPYQ_2022

PhysicsMediumsingle choice

The kinetic energy of the electron in an orbit of radius $r$ in hydrogen atom is proportional to ( $e =$ electronic charge $)$

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Answer:

Solution:

The potential energy of the electron in the nth orbit of radius $r$ in Hatom, $U = \frac{e ^{2}}{r}$ (in CGS) $∵$ K.E. $= \frac{1}{2} ∣$ P.E. $∣\Rightarrow K = \frac{e ^{2}}{2 r}$

Stream:MHT_CETSubject:PhysicsTopic:Modern PhysicsSubtopic:Atomic structure

⏱ 2mℹ️ Source: PYQ_2022

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