Question

Explain Balmer series of spectral lines for the hydrogen atom.

Answer 1

1. The spectral lines of this series corresponds to the transition of an electron from some higher energy state to 2nd orbit.
2. For Balmer series, p = 2 and n = 3, 4, 5. The wave numbers and the wavelengths of spectral lines constituting the Balmer series are given by.
   `barv = 1/lambda  = R(1/2^2 - 1/n^2)`
   This series lies in the visible region.