JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Rate of decay and Half-life

  • question_answer
    The half-life of a radioactive element is 6 months. The time taken to reduce its original concentration to its 1/16 value is [MP PET 1991]

    A)                 1 year   

    B)                 16 years

    C)                 2 years 

    D)                 8 years

    Correct Answer: C

    Solution :

              \[t=\frac{2.303\times {{t}_{1/2}}}{0.693}\log \frac{{{N}_{o}}}{N};N=\frac{1}{16}\]


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