A radioactive sample initially contains N atoms. After three half-lives the number of atoms that have disintegrated is
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Correct Answer: Option A
Explanation:
N \(\to\) \(\frac{N}{2}\) \(\to\) \(\frac{N}{4}\) \(\to\) \(\frac{N}{8}\)
N \(\to\) \(\frac{N}{2}\) \(\to\) \(\frac{N}{4}\) \(\to\) \(\frac{N}{8}\)