A) 1
B) ¾
C) 7/8
D) 1/8
Correct Answer: C
Solution :
Number of half lives \[=\frac{15}{5}=3yr\] So, after three half lives the decayed part of the radioactive material \[=1-{{\left( \frac{1}{2} \right)}^{3}}=\frac{7}{8}part\]You need to login to perform this action.
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