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What is the one theoretical factor that affects the lower limit of the line width? This...

What is the one theoretical factor that affects the lower limit of the line width? This is in the context of Emission lines.

Science   Advanced-Physics   
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Answer #1

Lower limit of line width is due to Heisenberg Energy-time uncertainty principle .

where is uncertainty in energy of a energy state having energy E and is life time of particle in energy state E.

This is intrinsic property of system. It is not instrumental error. Due to this uncertainty in energy of a state emission line has a lower limit of line width.

I will be glad to see your comment if you have any query and thumb up if you are satisfied. Thanks...

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