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A nucleus A (parent) decays into B (Daug...

A nucleus `A` (parent) decays into `B` (Daughter) with half life `T_(1)` and `B` decays into `C` with half life `T_(2)`. Graph is drawn between number of atoms`//`activity versus time. Select the correct graph `(s)`

A

B

C

D

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The correct Answer is:
A, D

When `T_(1) gt gt T_(2)`, the no of nuclei of A (parent) almost when `T_(1) lt T_(2)`, the no of nuclei of A (parent) decrease exponentially.
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