A) 60 minutes
B) 120 minutes
C) 70 minutes
D) 75 minutes
Correct Answer: B
Solution :
\[\frac{1}{16}=\frac{1}{{{2}^{n}}}\,\text{or}\,\frac{\text{1}}{{{\text{2}}^{\text{4}}}}=\frac{1}{{{2}^{n}}}\text{or}\,n\text{ }=\text{4}\] \ Required time \[=4\times {{t}_{1/2}}=120min\].
You need to login to perform this action.
You will be redirected in
3 sec
