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JEE Main & Advanced Physics Atomic Physics Question Bank Numerical Value Type Questions - Nuclei

  • question_answer
    The activity of a freshly prepared radioactive sample is \[{{10}^{10}}\] disintegrations per second, whose mean life is \[{{10}^{9}}\] s. The mass of an atom of this radioisotope is \[{{10}^{-25}}kg.\] The mass (in mg) of the radioactive sample is

    Answer:

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