After 280 days, the activity of a radioactive sample is 6000 dps. The – McqOptions

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1.	After 280 days, the activity of a radioactive sample is 6000 dps. The activity reduces to 3000 dps after another 140 days. The initial activity of the sample in dps is [IIT-JEE (Screening) 2004]
A.	6000
B.	9000
C.	3000
D.	24000
Answer» E.

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