A) 37.5 day
B) 30 day
C) 25 day
D) 50 day
E) 60 day
Correct Answer: B
Solution :
\[Cs-137=8\]g on 1st Feb 2006 0.25 g left on 1st July 2006 8 g reduces to 0.25 in\[5\times 30\]days \[T=n\times {{t}_{1/2}}\] 150 days \[=5\times {{t}_{1/2}}\] \[{{t}_{1/2}}=\frac{150}{5}\]days = 30 days
You need to login to perform this action.
You will be redirected in
3 sec
