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

  • question_answer
    Half-life of a radioactive element is 100 yrs. The time in which it disintegrates to 50% of its mass, will be [MP PMT 1995]

    A)                 50 yrs   

    B)                 200 yrs

    C)                 100 yrs 

    D)                 25 yrs

    Correct Answer: C

    Solution :

              \[{{t}_{1/2}}=100\] years.


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