The grond state energy of hydrogen atom is ` 13.6 eV`. If an electron makes a transition
from an energy level - 1.51 eV to - 3.4 e V , calculate the wevelength of the spectrel line
emitted and name the series of hydrogen spectrum to which it belongs.

Explanation

` E_(n) = - 13.6 eV`
If, ` E_(n) = 1.51 rArr (-13.6)/(n^(2)) = - 1.51`
`rArr n^(2) = (-13.6)/(1.51) =9rArr n= 3`
For `E_(n) = 3.4 eV rArr (-13.6)/(n^(2)) = -3.4 eV`
`rArr n^(2) = (+ 13.6)/(-3.4) = 4 rArr n = 2`
Here, treansition for n = 3 to n = 2, so, if corresponds to Balmer series.