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  1. The unit of radioactivity is

  2. A.

     Electron volt

    B.

     Electron ampere

    C.

     Curie

    D.

     MV

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    Answer : Option C

    Explanation :

    1 curie = 3.7x10^10 radioactive decays per second [exactly].
    1 becquerel = 1 radioactive decay per second = 2.703x10^-11 Ci.


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