JEE Advanced 2020 Full Test 6 Paper 1

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Nucleus A decays to B with decay constant λ1 and B decays constant λ2. Initially at t=0 number of nuclei of A and B are 2N0 and N0 respectively. Att=t0, number of nuclei of B stop changing. If at this instant number of nuclei of B are ‌
3N0
2
.
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