If the total energy of an electron in a hydrogen atom in an exicted state is -3.4 eV , then the de- broglie wavelegth of the ele

If the total energy of an electron in a hydrogen atom in an exicted state is -3.4 eV , then the de- broglie wavelegth of the electron is :-
A. `7.2xx10^(-10)m`
B. `3xx10^(-10)m`
C. `5xx10^(-9)m`
D. `9.3xx10^(-12)m`

If the total energy of an electron in a hydrogen atom in an exicted state is -3.4 eV , then the de- broglie wavelegth of the electron is :-

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