A radioactive material has a half life of $10$ days. What fraction of the material would remain after $30$ days
A radioactive material has a half life of $10$ days. What fraction of the material would remain after $30$ days
- [AIIMS 2005]
- A
$0.5$
- B
$0.25$
- C
$0.125$
- D
$0.33$
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