Question

Total number of spectral line emitted when electrons jumps from n = 5 to ground state?

Answer 1

Correct answer is 10.00

If the electron jumps from n₂ = 5 to n₁ = 1 

Then following transition possible

5 → 4, 5 → 3, 5 → 2,5 → 1

4 → 3, 4 → 2, 4 → 1

3 → 3, 3 → 1

2 → 1

Hence, 10 transitions are possible