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

  • question_answer
    The decay constant of a radioactive element is 0.01 per second. Its half-life period is  [DPMT 2001]

    A)            693 sec                                    

    B)            6.93 sec

    C)            0.693 sec                                

    D)            69.3 sec

    Correct Answer: D

    Solution :

               \[{{t}_{1/2}}=\frac{0.6931}{0.01}=69.31\]seconds.


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