A) \[3.2\times {{10}^{10}}\]
B) \[0.53\times {{10}^{10}}\]
C) \[2.1\times {{10}^{10}}\]
D) \[0.8\times {{10}^{10}}\]
Correct Answer: D
Solution :
In the given case, 12 days = 3 half lives Number of atoms left after 3 half lives. \[=6.4\times {{10}^{10}}\times \frac{1}{{{2}^{3}}}=0.8\times {{10}^{10}}\]
You need to login to perform this action.
You will be redirected in
3 sec
