Answer & explanation
Correct answer: option 2
$ n = \frac{t}{t_\frac{1}{2}} = \frac{11400}{5700} = 2$
$ N = \frac{N_0}{2^n} = \frac{N_0}{4} = 0.25 N_0$
Correct answer: option 2
$ n = \frac{t}{t_\frac{1}{2}} = \frac{11400}{5700} = 2$
$ N = \frac{N_0}{2^n} = \frac{N_0}{4} = 0.25 N_0$