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

  • question_answer
    A radioactive element decays by \[\beta \] emission. A detector records n beta particles in 2 second and in next 2 seconds it records 0.75 n beta particles. Find mean life (in second) corrected to nearest whole number. Given \[\ln 2=0.6931\] and \[\ell n3=\text{ }1.0986.\]

    Answer:

    6.9


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