Question

In hydrogen spectrum, if $n=4$ the ratio of number of lines in emission spectrum, in ultra violet and visible regions is :-

• A. 2:3
• B. 3:1
• C. 3:2
• D. None of these

Answer 1

The correct option is C 3:2

Number of lines in Lyman series (U.V. Region)- 3

Number of lines in Balmer series (Visible Region) - 2