Wednesday, January 5, 2011

Spectrum of hydrogen

Complete line spectrum of hydrogen.
 
The emission spectrum of hydrogen atom is obtained by passing electrical discharge through hydrogen gas at very low pressure. Hydrogen atoms emit bluish light. When the ray of this light is passed through a prism, a discontinuous line spectrum consisting of several sharp lines is obtained. Balmer examine the emission line spectrum in the visible region and found four sharp coloured lines in the spectrum. This series is Balmer series.

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