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The energy of separation of an electron ...

The energy of separation of an electron in a hydrogen like atom in excited state is 3.4eV. The de-Broglie wave length (in Å) associated with the electron is :

A

(a) 3.33

B

(b) 6.66

C

(c) 13.31

D

(d) none of these

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The correct Answer is:
B
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