# Infared WAvelengths in transition through energy levels

#### skibum143

1. 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

2. Homework Equations
Paschen Lines = Infared wavelengths

3. 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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#### ideasrule

Homework Helper
What about 6 to 5, 6 to 4, and 5 to 4?

#### skibum143

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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