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The velocity of electrons in the ground ...

The velocity of electrons in the ground state of H- atom is `2.185 xx 10^(8)` cm/sec . The velocity of electron in the first excited state of `Li^(2+)` ion in cm/sec would be :

A

`3.276 xx 10^(8)`

B

`2.185 xx 10^(8)`

C

`4.91 xx 10^(8)`

D

`1.638 xx 10^(8)`

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The correct Answer is:
A
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