alleryStart learning →The time in which a sample of radioactive nuclei falls to half its number is the:
AHalf count
BHalf decay
CHalf power
DHalf life
Answer & Solution
Correct answer: D. Half life
1. The count of nuclei falls steadily with time.
2. A special time marks the drop to one half.
3. That time is the half life.
_Source: syllabus Physics Part II, Class XII, Chapter 13, Nuclei._
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