Infared WAvelengths in transition through energy levels

AI Thread Summary
The discussion centers on identifying hydrogen energy level transitions that emit infrared photons, specifically those corresponding to energy levels below 1.8 eV. The Paschen series, which includes transitions to the third energy level, is confirmed to produce infrared wavelengths. The user initially identified transitions from levels 6 to 3, 5 to 3, and 4 to 3 as valid, but later realized that transitions can also occur to levels 4 and 5. Clarification was sought regarding the exclusivity of visible and UV rays landing on levels 2 and 1, respectively. The conversation highlights the importance of understanding energy level transitions in relation to different types of electromagnetic radiation.
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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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