The radius ratio of Bohr's first orbit of hydrogen like species $\mathrm{He}^{+}, \mathrm{Li}^{2+}$ and…

The radius ratio of Bohr's first orbit of hydrogen like species $\mathrm{He}^{+}, \mathrm{Li}^{2+}$ and $\mathrm{Be}^{3+}$ is
  1. $3: 4: 6$
  2. $2: 3: 4$
  3. $6: 4: 3$
  4. $4: 3: 2$

Solution

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Asked in: AP EAMCET 2018 (24 Apr Shift 2)

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