Question

The electron in hydrogen atom is initially in the second excited state. When it finally moves to ground state, the maximum number of spectral lines emitted are

• A. \(2\)
• B. \(3\)
• C. \(4\)
• D. \(5\)

Hint:

Second excited state means n = 3; lines = n(n-1)/2.

Answer 1

The Correct Option is B

Step 1: Level
Second excited state is $n = 3$.

Step 2: Formula
$\binom{3}{2} = 3$ possible pairs of levels.

Step 3: Answer
3 lines. Option (B).

Final Answer:
Option (B). \[ \boxed{3} \]