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Atoms and Nuclei question

2008 · Shift 1 · Q64
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Atoms and Nuclei question

2008 · Shift 1 · Q64

JEE AdvancedPhysicsAtoms and NucleiMCQ+3 / −1
In a mixture of H - He +^++ gas (He +^++ is singly ionized He atom), H atoms and He +^++ ions are excited to their respective first excited states. Subsequently, H atoms transfer their total excitation energy to He +^++ ions (by collisions). Assume that the Bohr model of atom is exactly valid.The quantum number n of the state finally populated in He +^++ ions is :
  1. A
    2
  2. B
    3
  3. C
    4
  4. D
    5
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