The time in which activity of an element is reduced to 90% of its original value is (given `t""_(1//2)=1.4xx10""^(10)yr`)A. `1.128xx10""^(9)year`B. `2.128xx10""^(9)year`C. `3.128xx10""^(9)year`D. None of these

The time in which activity of an element is reduced to 90% of its orig

1.	The time in which activity of an element is reduced to 90% of its original value is (given `t""_(1//2)=1.4xx10""^(10)yr`)A. `1.128xx10""^(9)year`B. `2.128xx10""^(9)year`C. `3.128xx10""^(9)year`D. None of these
Answer» Correct Answer - b `lamda=2.303/tlog.N""_(0)/N(lamda=0.693//t""_(1//2))`

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The time in which activity of an element is reduced to 90% of its original value is (given `t""_(1//2)=1.4xx10""^(10)yr`)A. `1.128xx10""^(9)year`B. `2.128xx10""^(9)year`C. `3.128xx10""^(9)year`D. None of these

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