InterviewSolution
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InterviewSolution
| 1. |
A fresh radioactive mixture contians short lived sppecies A and B. Both emitting alpha-particles intially of 8000 alpha particles per minute. 20 minutes later, they emis at the rate of 3500 alpha -particles per minute. If the half-lives of the species A and B are 10 minutes and 500 hours respectively, then the ratio of activities of A: B the intial mixture was: |
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Answer» `4:6` |
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