Published by:
CGP EDU Academic Team
Published on: August 12, 2026
Consider the following spectral lines for atomic hydrogen:
A
First line of Paschen series
B
Second line of Balmer series
C
Third line of Paschen series
D
Fourth line of Bracket series. The correct arrangement of the above lines in ascending order of energy is:
Text Solution
Verified by ExpertsThe correct answer is:
B
The energy of a spectral line in the hydrogen atom is given by 
.
First line of Paschen series: 
.
.
Second line of Balmer series: 
.
.
Third line of Paschen series: 
.
.
Fourth line of Brackett series: 
.
.
Comparing the values: 
.
The ascending order of energy is 
.
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