Questions
The half-life of radon is 3.8 days. Three fourth Of a radon sample decay in
a
5.02 days
b
15.2 days
c
7.6 days
d
I 1.4 days
detailed solution
Correct option is C
Decayed fraction =34 , so undecayed fraction =14Now NN0=12n⇒14=12n⇒n=2 ⇒t=n x T1/2=2 x 3.8=7.6 daysTalk to our academic expert!
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The half life period of a radioactive element X is same as the mean life time of another radioactive element Y. Initially both of them have the same number of atoms. Then
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