Q.
A sample of radioactive element has initial number of active nuclei N0 and half life of the element is T. Then number of nuclei decayed in the period from t = T to t = 2T is
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answer is 2.
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Detailed Solution
At time t, number of active nuclei N=N0(2)t/TNumber of decayed nuclei =N0(2)T/T-N0(2)2T/T=N04
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