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The half life of 38^90Sr is 29 years. Wh...

The half life of `38^90Sr` is 29 years. What is the disintegration rate of 25 mg of this isotope?

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R G PUBLICATION-NUCLEI-EXERCISE
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  14. What is meant by artificial radioactivity? Give some example?

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  15. State and explain the laws of radioactivity?

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