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Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsAtomic structureHard2 minPYQ_2012

PhysicsHardsingle choice

An electron of a stationary hydrogen atom passes from the fifth energy level to the ground level. The velocity that the atom acquired as a result of photon emission will be ( $m$ is the mass of the electron, $R$ Rydberg constant and $h$ Planck's constant)NEET 2012 (Screening)

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Solution:

Here, $E_{5} - E_{1} = \frac{h c}{λ}$ $\frac{R h c}{25} - R h c = \frac{h c}{λ} \frac{24}{25} R = \frac{1}{λ}$ But $P v = \frac{h}{λ} = \frac{h}{mλ} = \frac{24}{25} \frac{R h}{m}$

Stream:NEETSubject:PhysicsTopic:Modern PhysicsSubtopic:Atomic structure

⏱ 2mℹ️ Source: PYQ_2012

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