Nuclear Physics and RadioactivityHard
Question
When a hydrogen atom is excited from ground state to first excited state, then
Options
A.its kinetic energy increases by 10.2 eV
B.its kinetic energy increases by 13.6 eV
C.its potential energy increases by 10.2 eV
D.its angular momentum increases by h / 2π
Solution
In ground state, kinetic energy = 13.6 eV, potential energy = - 27.2eV
In first excited state, kinetic energy = 3.4 eV, Potential energy = - 6.8eV
Angular momentum is =
; Difference of angular momentum for consecutive orbit = 
In first excited state, kinetic energy = 3.4 eV, Potential energy = - 6.8eV
Angular momentum is =
; Difference of angular momentum for consecutive orbit = Create a free account to view solution
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