If the fraction of the atoms of a radioactive material left after 120years is \(\frac{1}{64}\), what is the half-life of the material? \(\frac{1}{64}\)
A
20 years
B
10 years
C
2 years
D
24 years
Verified Correct Answer: A.
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #47402)