The half life of a radioactive material is 12 days. Calculate the decay constant.
- 0.8663 \(day^{-1}\)
- 0.04331 \(day^{-1}\)
- 0.17325 \(day^{-1}\)
-
0.05775 \(day^{-1}\)
The correct answer is: D
Explanation
\(T_ {^1/_2}\) = 12 days ;V=?
\(T_ {^1/_2}\) = \(\frac{0.693}{ฮณ}\)
โฮณ โ\(\frac{0.693}{t_{^1/_2}}\)
โฮณ =\(\frac{0.693}{12}\)
โฮณ= 0.05775 \(day^{-1}\)
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