JEE Main & Advanced
JEE Main Paper (Held on 10-4-2019 Afternoon)
question_answer
In \[L{{i}^{++}},\]electron in first Bohr orbit is excited to a level by a radiation of wavelength\[\lambda .\] 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 \[\lambda \]?