JEE Main 2020 — Structure Of Atom Question with Solution
From: JEE Main 2020 (Online) 8th January Morning Slot
Question
For the Balmer series in the spectrum of H atom,
, the correct statements among (I) to (IV) are :
(I) As wavelength decreases, the lines in the series converge
(II) The integer n1 is equal to 2
(III) The lines of longest wavelength corresponds to n2 = 3
(IV) The ionization energy of hydrogen can be calculated from wave number of these lines
, the correct statements among (I) to (IV) are :
(I) As wavelength decreases, the lines in the series converge
(II) The integer n1 is equal to 2
(III) The lines of longest wavelength corresponds to n2 = 3
(IV) The ionization energy of hydrogen can be calculated from wave number of these lines
Choose an option
Show full solutionCorrect option: B
Correct answer
B(I), (II), (III)
Step-by-step explanation
For balmer series : n1 = 2, n2 = 3, 4, 5, .....
For longest wavelength n2 = 3
As wavelength decreases the lines in the Balmer series converge. The correct statements are (I), (II) and (III).
For longest wavelength n2 = 3
As wavelength decreases the lines in the Balmer series converge. The correct statements are (I), (II) and (III).
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