2. Questions Bank
  3. JEE Main & Advanced
  4. Physics
  5. Nuclear Physics And Radioactivity

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

  • question_answer
    If the half-life of a radioactive sample is 10 hours, its mean life is                                               [MP PET 1994]

    A)            14.4 hours                             

    B)            7.2 hours

    C)            20 hours                                 

    D)            6.93 hours

    Correct Answer: A

    Solution :

               Mean life \[=\frac{Half\ life}{0.6931}=\frac{10}{0.6931}=14.4\ hours\]


You need to login to perform this action.
You will be redirected in 3 sec spinner