Infared WAvelengths in transition through energy levels

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SUMMARY

The discussion focuses on identifying transitions in hydrogen energy levels that correspond to infrared light, specifically those with energy levels less than 1.8 eV. The Paschen series, which includes transitions from higher levels to level 3, produces infrared wavelengths. The correct transitions identified are 6 to 3, 5 to 3, and 4 to 3, while the participant also questions the validity of transitions 6 to 5, 6 to 4, and 5 to 4. It is confirmed that infrared transitions can occur to levels 3, 4, or 5, while visible and UV rays are limited to levels 2 and 1, respectively.

PREREQUISITES
  • Understanding of hydrogen energy levels and transitions
  • Knowledge of photon energy calculations and eV (electron volts)
  • Familiarity with the Paschen series in atomic physics
  • Basic concepts of electromagnetic spectrum and wavelength classifications
NEXT STEPS
  • Study the Paschen series and its significance in hydrogen spectral lines
  • Learn about photon energy calculations and how to convert between eV and wavelength
  • Explore the Balmer and Lyman series for comparison with the Paschen series
  • Investigate the electromagnetic spectrum and the classification of light based on energy levels
USEFUL FOR

Students studying atomic physics, educators teaching quantum mechanics, and anyone interested in the behavior of hydrogen energy levels and their corresponding spectral lines.

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Homework Statement


How many transitions involving the hydrogen energy levels shown correspond to photons of infrared light? The infrared range is less than 1.8 eV


Homework Equations


Paschen Lines = Infared wavelengths


The Attempt at a Solution


I thought that since Paschen lines = Infared wavelengths, that 6 to 3, 5 to 3, and 4 to 3 would be the three transitions that corresponded to infared light. Not sure what I'm doing wrong here. Diagram is attached. Thanks!
 

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What about 6 to 5, 6 to 4, and 5 to 4?
 
Ah, I see. I thought that the infared rays were only the ones that landed on level 3, but they can land on level 3, 4, OR 5? However, visible rays ONLY land on level 2 and UV rays ONLY land on level 1, is that correct? Thanks for your help!
 

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