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when a hydrogen atom is raised from the ...

when a hydrogen atom is raised from the ground state to an excited state

A

both KE and PE increase

B

both KE and PE decrease

C

PE increase and KE decrease

D

PE decrease and KE increase

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The correct Answer is:
C
As the number of orbit increase, the velocity decrease . The potential energy becomes less negative, i.e.. `PE` increase while `KE` decrease.
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