A) \[400\,s\]
B) \[6.3\,s\]
C) \[40\,s\]
D) \[300\,s\]
Correct Answer: A
Solution :
As, \[R={{R}_{0}}{{\left( \frac{1}{2} \right)}^{n}}\] Given, \[R=\frac{{{R}_{0}}}{16}\] \[\frac{{{R}_{0}}}{16}={{R}_{0}}{{\left( \frac{1}{2} \right)}^{n}}\] On solving, \[n=4\] Total time \[t=n.\] \[{{t}_{1/2}}\] \[=4\times (100)=400s\]You need to login to perform this action.
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