Question

Ratio of minimum of Lyman & Balmer wavelengths series for hydrogen atom is

• A. 1 : 4
• B. 2 : 9
• C. 4 : 3
• D. 7 : 9

Answer 1

The correct option is A 1 : 4

$Lyman\frac{hc}{{\lambda }_{min}}=E_{max}=E_{\infty }-E_1=0-\left(13.6\right)=13.6Balmer\frac{hc}{{\lambda }_{min}^1}=E_{max}=E_{\infty }-E_2=0-(-3.4)=3.4\frac{{\lambda }_{mi{n}^1}}{{\lambda }_{min}}=\frac{13.6}{3.4}=\frac{4}{1}\frac{{\lambda }_{min}}{{\lambda }_{mi{n}^1}}=\frac{1}{4}$