Question

What would be the maximum number of emission lines for atomic hydrogen that you would expect to see with the naked eye if the only electronic energy levels involved are those as shown in the Figure?

• A. 4
• B. 6
• C. 5
• D. 15

Answer 1

The correct option is A

4

Only four lines are present in visible region,

$6\to 2$, $5\to 2$, $4\to 2$ and $3\to 2$.