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In a sample of radioactive material what fraction of the initial number of active nuclei will remain undisintigrated after half life of the sample? 1) 1/4. 2) 1/2 3) 1/21/2 4) 1 |
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Answer» In a sample of radioactive material what fraction of the initial number of active nuclei will remain undisintigrated after half life of the sample? 1) 1/4. 2) 1/2 3) 1/21/2 4) 1 |
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