CAPE Physics Unit 2 · 2008 (Rest of Region) · Paper 1 · Question Q42
A radioactive element has a half life period of 1600\text{ years}. After 6400\text{ years}, what fraction of a sample of this element will remain?
- (A)
\frac{1}{16} - (B)
\frac{1}{8} - (C)
\frac{1}{4} - (D)
\frac{1}{2}
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