Question:medium
If N is the initial number of atoms in a radioactive sample, then the number of atoms decayed after the five half life periods is
If N is the initial number of atoms in a radioactive sample, then the number of atoms decayed after the five half life periods is
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Fraction decayed = \(1 - (1/2)^n\). For n=5, it's \(1 - 1/32 = 31/32\).
Updated On: Apr 24, 2026
- \(\frac{31}{32} N\)
- \(\frac{15}{16} N\)
- \(\frac{7}{8} N\)
- \(\frac{N}{32}\)
- \(\frac{N}{16}\)
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The Correct Option is A
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