Questions
Ratio of initial number of active nuclei of two radio active elements x and y is 8 :1. If half life of x is 1 hour and that of y is 2 hour, find the time after which the number of active nuclei of x and y will be the same.
detailed solution
Correct option is C
N=(N0)x(2)tT=(N0)y(2)t2T⇒(N0)x(N0)y=(2)tT(2)t2T⇒8=(2)t2T⇒t2T=3⇒t=6T=6×1 hrTalk 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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