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Surendra parihar Asked a Question
January 13, 2021 3:20 pmpts 30 pts
Example: Find the mean lifetime of Cobalt if its activity decreases by 4% in 1 hour?
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  • Prashant kumar Best Answer
    Answer
    • cropped3949017321737685115.jpg
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  • Surendra parihar
    I fail to understand this example , please help me
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