Question

In which region of the electromagnetic spectrum does the Lyman series of hydrogen atom lie ?

• A. Infrared
• B. Visible
• C. Ultraviolet
• D. $X$-ray

Answer 1

Answer: (C)

Lyman series o f hydrogen atom lie in the ultra violet region have the wavelengths given by
$\frac{1}{\lambda }=R\left[\frac{1}{1^2}-\frac{1}{n^2}\right]$
where $n=2,3,4,\dots$