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10. The series limit of the Paschen series (10 = 3) is 820.1 mm. What are the three longest wavelengths of the Paschen series?

10. The series limit of the Paschen series (10 = 3) is 820.1 mm. What are the three longest wavelengths of the Paschen series?

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10. The series limit of the Paschen series (\(n_0 = 3\)) is 820.1 nm. What are the three longest wavelengths of the Paschen series?
Transcribed Image Text:10. The series limit of the Paschen series (\(n_0 = 3\)) is 820.1 nm. What are the three longest wavelengths of the Paschen series?
Expert Solution
Concept and Principle:
  • Spectral lines are formed due to electron transition. When an electron from a higher energy level comes down to a lower energy level it will radiate energy as a photon.

 

  • The Paschen series of a hydrogen atom is formed when the lower energy level of the transition is 3.

 

  • For the hydrogen atom, the wavelength of the released photon can be calculated from the series limit given by,

λ=λlimit(n2n2−n02)

Here λlimit is the series limit line and n is the energy level from which the electron falls back, and n0 is the lower energy level.

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