JEE Main 2019 — Structure Of Atom Question with Solution
From: JEE Main 2019 (Online) 10th April Evening Slot
Question
The ratio of the shortest wavelength of two spectral series of hydrogen spectrum is found to be about 9. The
spectral series are :
Choose an option
Show full solutionCorrect option: C
Correct answer
CLyman and Paschen
Step-by-step explanation
Shortest wavelength can found when n2 =
Here n1 = series number.
=
Given,
Series number of B = 3 Series number of A
So,
If series number of A is Lyman( n = 1 )
then series number of B is Paschen( n = 3 ).
Here n1 = series number.
=
Given,
Series number of B = 3 Series number of A
So,
If series number of A is Lyman( n = 1 )
then series number of B is Paschen( n = 3 ).
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This is a previous-year question from JEE Main 2019, covering the Structure Of Atom chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.