At $t = 0$, number of active nuclei in a sample is $N_0$. How much no. of nuclei will decay in time between its first mean life and second half life?

  • A

    $\frac{{{N_0}}}{e}$

  • B

    $\frac{{{N_0}}}{e} - \frac{{{N_0}}}{4}$

  • C

    $\frac{{{N_0}}}{2} - \frac{{{N_0}}}{e}$

  • D

    $\frac{{{N_0}}}{4}$

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