Hydrogen and its compoundHard
Question
The longest wavelength line in lyman series of hydrogen spectrum is :-
Options
A.1025.8 (Ao)
B.1215.8 (Ao)
C.972.6 (Ao)
D.949.8 (Ao)
Solution
= Z2R 
= (1)2 × 109700
λmax =
cmλmax =
× 108 (Ao)λmax = 1215.8 (Ao)
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