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Railways General Science & Technology Structure of Atom / परमाणु संरचना Sample Paper Structure of Atom Sample Test Paper-14

  • question_answer
    The following are the half-lives of four radioactive isotopes. Which one of the following is the most dangerous to handle?

    A)  3 billion years

    B)         100 years

    C)  0.01 minute

    D)  13 days

    Correct Answer: C

    Solution :

    Not Available  


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