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CMC Medical CMC-Medical Ludhiana Solved Paper-2008

  • 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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