A) 66.6%
B) 85.5%
C) 62.5%
D) 75%
Correct Answer: D
Solution :
Number of half lives in 150 years \[n=\frac{150}{75}=2\] Fraction of the atom of decayed \[=1-{{\left( \frac{1}{2} \right)}^{n}}\] \[=1-{{\left( \frac{1}{2} \right)}^{2}}=\frac{3}{4}=0.75\] Þ Percentage decay = 75%You need to login to perform this action.
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