Q. Hydrogen atom is excited from ground state to another state with principal quantum number equal to 4. Then the number of spectral lines in the emission spectra will be
A) 6
B) 2
C) 3
D) 5
✔ Correct Answer: 6
Exam Insight
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A) 6
B) 2
C) 3
D) 5
✔ Correct Answer: 6
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