A) \[24\times {{10}^{19}}\]
B) \[12\times {{10}^{19}}\]
C) \[3\times {{10}^{19}}\]
D) \[6\times {{10}^{19}}\]
Correct Answer: C
Solution :
\[{{N}_{t}}={{N}_{o}}{{\left( \frac{1}{2} \right)}^{n}}\]\[=48\times {{10}^{19}}{{\left( \frac{1}{2} \right)}^{26/6.5}}\] \[=48\times {{10}^{19}}{{\left( \frac{1}{2} \right)}^{4}}=3\times {{10}^{19}}\].You need to login to perform this action.
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