Mean life: Difference between revisions

From Glossary of Meteorology
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|Meaning=(''Or'' mean lifetime, lifetime.) The average time during which anything can be said to  reside within a specified region or to exist unchanged; for example, the mean life of a chemical  species in the [[atmosphere]], the mean life of a radioactive [[nucleus]], the mean life of [[photons]] in  a [[cloud]].
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|Explanation=For processes following the same exponential law as radioactive decay, mean life is related simply  to [[half-life]].
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== mean life ==
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<div class="definition"><div class="short_definition">(<br/>''Or'' mean lifetime, lifetime.) The average time during which anything can be said to  reside within a specified region or to exist unchanged; for example, the mean life of a chemical  species in the [[atmosphere]], the mean life of a radioactive [[nucleus]], the mean life of [[photons]] in  a [[cloud]].</div><br/> <div class="paragraph">For processes following the same exponential law as radioactive decay, mean life is related simply  to [[half-life]].</div><br/> </div>
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Latest revision as of 11:47, 29 March 2024

(Or mean lifetime, lifetime.) The average time during which anything can be said to reside within a specified region or to exist unchanged; for example, the mean life of a chemical species in the atmosphere, the mean life of a radioactive nucleus, the mean life of photons in a cloud.

For processes following the same exponential law as radioactive decay, mean life is related simply to half-life.

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