Question:medium
If a radioactive substance is reduced to $6.25%$ of its initial amount in $256$ days then its half-life period is
If a radioactive substance is reduced to $6.25%$ of its initial amount in $256$ days then its half-life period is
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Physics Tip: $6.25% = \frac{1}{16}$ instantly tells you four halvings: $100 \to 50 \to 25 \to 12.5 \to 6.25$
Updated On: Apr 27, 2026
- $126$ days
- $64$ days
- $50$ days
- $25$ days
- $12.5$ days
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The Correct Option is B
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