Question

24. The transition occurs in hydrogen atom from ni = 3 to nf = 1 energy level.
Find the wavelength of emitted radiation. Name the spectral series to which
this transition belongs. (R = 1.097x107 m )
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Answer 1

Let the wavelength be x,

1/x=Rz²[1/nf² - 1/ni²]

1/x= 1.097×10^7×8/9

x= 1.025×10^-7 m

this transition belongs to the Lyman series