Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Which of the following statement(s) is(are) correct about the spectrum of hydrogen atom?
A
The ratio of the longest wavelength to the shortest wavelength in Balmer series is 9/5
B
There is an overlap between the wavelength ranges of Balmer and Paschen series
C
The wavelength of Lyman series are given by 
where 
is the shortest wavelength of Lyman series and m is an integer
where is the shortest wavelength of Lyman series and m is an integer
D
The wavelength ranges of Lyman and Balmer series do not overlap
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(a, d)
For hydrogen atom, z = 1
where R = 1.0973 x 10 7 m -1 = 1.1 x 10 7 m -1 = Rydberg constant.
For the Lyman series, n 1 =1 and n 2 = 2, 3, 4,....... 
= 
max , when n 2 = 2
, when n 2 = 
Also, 
where,
For the Balmer series, 
and 
Hence, for the Balmer series,
For the Paschen series, 
and 
, when 
when 
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