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Q. What is fine structure of spectral lines?
When the spectral line of hydrogen atom is observed by spectrometers having high resolving power it is found that a single line is composed of two or more close components. This is recognized as the fine structure of spectral lines. Bohr's theory couldn't explain the fine structure of spectral lines.
(i) It has of continuously varying wavelengths in a exact wavelength range. (ii) It is given by solids, liquids and highly compressed gases heated to high temperature. (iii)
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