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Find ratio of velocities of electrons in...

Find ratio of velocities of electrons in `2^(nd)` excited state of `Li^(+2)` ion `& 3^(rd)` excited state of H-atom.

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`v_(2)/(v_(3))=(2.19xx10^(6)xx(3)/(3))/(2.19xx10^(6)xx(1)/(4))=4`
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