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It is observed that some of the spectral lines in hydrogen spectrum have wavelengths almost equal to those of the spectral lines in He ⁺ ion. Out of the following the transitions in He ⁺ that will make this possible is

Options

  1. An=3 to n=1
  2. Bn=6 to n=4
  3. Cn =5 to n =3
  4. Dn=3 to n=2

Correct answer

B. n=6 to n=4

Step-by-step solution

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