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JEE Main & Advanced Physics Nuclear Physics And Radioactivity Question Bank Radioactivity

  • question_answer
    If half-life of a radioactive atom is 2.3 days, then its decay constant would be      [AFMC 1997; JIPMER 2000]

    A)            0.1 

    B)            0.2

    C)            0.3 

    D)            2.3

    Correct Answer: C

    Solution :

               \[\lambda =\frac{0.693}{{{T}_{1/2}}}=\frac{0.693}{2.3}=0.3\]


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