TS EAMCET · Physics · Nuclear Physics
If a radioactive substance decays \(10 \%\) in every 16 hours, then the percentage of the radioactive substance that remains after 2 days is
- A 82.2
- B 18.8
- C 27.1
- D 72.9
Answer & Solution
Correct Answer
(D) 72.9
Step-by-step Solution
Detailed explanation
\( \text{Time in hours} = 2 \text{ days} \times 24 \text{ hours/day} = 48 \text{ hours} \) \( \text{Number of decay periods} = \frac{48 \text{ hours}}{16 \text{ hours/period}} = 3 \) \( \text{Fraction remaining per period} = 1 - 0.10 = 0.90 \)…
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