Radio activity
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80k UsersA sample of radioactive element has initial number of active nuclei and half life of the element is T. Then number of nuclei decayed in the period from t = T to t = 2T is
At time t, number of active nuclei
Number of decayed nuclei
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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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