Question

Which of the following transition corresponds to the second line in Balmer series?

• A. 2 $\to$ 1
• B. 3 $\to$ 2
• C. 4 $\to$ 2
• D. 3 $\to$ 1

Answer 1

The correct option is C 4 $\to$ 2

Balmer series emerges from the electronic transmission from higher level down to the n = 2 i.e., transitions where $n_1=2$ and $n_2=3,4,5,......$
So, first line in Balmer series is $3\to 2$ and second line is $4\to 2$.