Calculate mean life and half life, Physics

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Q. The half life of radon is 3.8 days. Calculate mean life.

Half Life Period          HLP T½ = 0.6931 / λ = 0.6931 τ

therefore                      Mean life τ = T½ / 0.6931 = 3.8 / 0.6931 = 5.483 days.


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