electron in first Bohr orbit is excited to a level by a radiation of wavelength
when the ion gets excited to the ground state in all possible ways (including intermediate emissions), a total of six spectral lines are observed. What is the value of 
? (Given : 
) [JEE Main 10-4-2019 Afternoon]
A) 9.4 nm
B) 12.3 nm
C) 10.8 nm
D) 11.4 nm
Correct Answer: C
Solution :
[c]  |
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