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AMU Medical AMU Solved Paper-2006

  • question_answer
    If the half-life of an isotope X is 10 yr, its decay constant is

    A)  6.932 \[y{{r}^{-1}}\]      

    B)  0.6932 \[y{{r}^{-1}}\]

    C)  0.06932 \[y{{r}^{-1}}\]                  

    D)  0.006932 \[y{{r}^{-1}}\]

    Correct Answer: C

    Solution :

                     We know that,                 \[\lambda =\frac{0.693}{{{t}_{1/2}}}=\frac{0.693}{10}=0.0693\,y{{r}^{-1}}\]


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