Number of spectral lines obtained in spectra, when an electron makes transition from fifth excited state to first excited state will be
Answer: 10
Solution
The maximum number of spectral lines produced when an electron falls from level to level , passing through every possible intermediate transition, is , where . For , the fifth excited state is and the first excited state is , so , giving spectral lines.
JEE Main · 2024 · 30 Jan 2024 · Shift 2 · Integer answer