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Consider the spectral line resulting from the transition n = 2  → n = 1 in the atoms and ions given below. The shortest wave length is produced by
  • a)
    Hydrogen atom
  • b)
    Deuterium atom
  • c)
    Singly ionized Helium
  • d)
    Doubly ionised Lithium
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Consider the spectral line resulting from the transition n = 2 → ...
We know the formula of wave number .
For atoms other than hydrogen, multiply (Z) square with the formula
The atom having highest Z will have shortest wavelength
Therefore answer is D.
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Consider the spectral line resulting from the transition n = 2 → n = 1 in the atoms and ions given below. The shortest wave length is produced bya)Hydrogen atomb)Deuterium atomc)Singly ionized Heliumd)Doubly ionised LithiumCorrect answer is option 'D'. Can you explain this answer?
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