A G.M. counter is used to study the radioactive process of first-order – InterviewSolution

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1.	A G.M. counter is used to study the radioactive process of first-order. In absence of radioactive substance A, it counts 3 disintegration per second (dps). When A is placed in the G.M. conter,it records 23 dps at the start and 13 dps after next 10 minutes and A has half-life periody minutes. x and y are:
Answer» 8 DPS, 10min 5dps, 10min 5dps, 20min 5dps, 5min Answer :A

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