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The half life of radon is3.8 days .after how many days will (1/10)th of radon sample remain behinde

The half life of radon is3.8 days .after how many days will (1/10)th of radon sample remain behinde

Grade:12th pass

1 Answers

Khimraj
3007 Points
4 years ago
ln2/\lambda = 3.8 days
N = No e-\lambdat
N = 0.1No = Noe-\lambdat
1/10 = e-\lambdat
e\lambdat = 10
\lambdat = ln10
t = ln10/\lambda = (ln10/ln2)*3.8 days.

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