If the fraction of the atoms of a radioactive material left after 120 years is
PHYSICS
JAMB 2021
If the fraction of the atoms of a radioactive material left after 120 years is 1/64, what is the half-life of the material?
- A. 24 years
- B. 20 years
- C. 10 years
- D. 2 years
Correct Answer: B. 20 years
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