A radioactive substance has a half life of 20 days. What fraction of the original
PHYSICS
JAMB 2006
A radioactive substance has a half life of 20 days. What fraction of the original radioactive nuclei will remain after 80 days?
- A) 1/32
- B) 1/16
- C) 1/8
- D) 1/4
Correct Answer: B) 1/16
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