PPT Slide

En-E1 = 13.6eV ( 1 -1/n2)

= hf = hc/?

?max=hc/(13.6eV)(.75)

~ 122 nm

En-E2 = 13.6eV ( 1/4 -1/n2)

= hf = hc/?

?max=hc/(13.6eV)(5/36)

~ 658 nm

=> 4 lines visible

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