The velocity of electron moving in \( 3^{\text {rd }} \) orbit of \( \mathrm{He}^{+} \) is \( \m...

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The velocity of electron moving in \( 3^{\text {rd }} \) orbit of \( \mathrm{He}^{+} \) is \( \mathrm{v} \). The velocity of electron moving in \( 2^{\text {nd }} \) orbit of  \( \mathrm{Li}^{2+} \) is
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