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Total energy of electron in an excited s...

Total energy of electron in an excited state of hydrogen atom is `-3.4eV` . The kinetic and potential energy of electron on this state

A

k=-3.4eV U= -6.8eV

B

K=3.4eV U=-6.8eV

C

K= -6.8eV U = +3.4eV

D

`K= + 10.2eV U= -13.6eV

Text Solution

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The correct Answer is:
b

Total energy of electron in an excited state
`E =-3.4eVthereforeK=-E=3.4eV`
`V=E-K=-3.4=-6.8eV`
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