The ratio of ionization energy of Bohr's hydrogen atom and Bohr's hydrogen like lithium atom is
The ratio of ionization energy of Bohr's hydrogen atom and Bohr's hydrogen like lithium atom is
- A
$1 : 1$
- B
$1 : 3$
- C
$1 : 9$
- D
None of these
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- [AIPMT 2010]
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