Published by:
CGP EDU Academic Team
Published on: August 13, 2026
A hydrogen atom in its ground state is irradiated by light of wavelength 970 
. Taking hc/ e = 1.237x10 -6 eV m and the ground state energy of hydrogen atom as -13.6 eV, the number of lines present in the emission spectrum is
Text Solution
Verified by ExpertsThe correct answer is:
6
(6)
Note : Unit of 
in original paper is incorrect
Energy available 
(4 th energy level of hydrogen atom)
Hence, the number of lines present in the emission spectrum = 4 C 2 = 6
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