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After 280 days, the activity of a radioa...

After 280 days, the activity of a radioactive sample is 6000 dps. The activity reduces to 3000 dps after another 140 days. Find the initial activity of the sample in dps.

A

6000

B

9000

C

3000

D

24000

Text Solution

Verified by Experts

The correct Answer is:
D
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