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PhysicsModern PhysicsAtomic structureEasy2 minPYQ_2022
PhysicsEasysingle choice

A hydrogen atom in its ground state absorbs10.2eVof energy. The angular momentum of electron of the hydrogen atom will increase by the value of (Given, Planck's constant=6.6×10-34Js).

Options:

Answer:
B
Solution:

Energy absorbed is given by,

ΔE=13.6×1n12-1n22

10.2=13.6×1n12-1n22

Therefore, we get, n1=1 & n2=2

The change in angular momentum

ΔL=n2h2π-n1h2π=h2π

=1.05×10-34 J s

Stream:JEESubject:PhysicsTopic:Modern PhysicsSubtopic:Atomic structure
2mℹ️ Source: PYQ_2022

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