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JEE PHYSICS MCQ: NUCLEI
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Half life of a substance a is 20 minutes what is the time between decay and decay?
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Correct option: B
20 minutes
Option B (20 minutes) is correct because the time between 33% decay and 67% decay is equal to one half-life, as it represents the time it takes for the remaining amount to halve from 67% to 33.5% (approximately 33%).
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