Question: Q. 2. Name and define, the SI unit for the ‘activity’, of a given sample of radioactive nuclei.
R [Foreign, 2016]
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Solution:
Ans. Becquerel
One becquerel activity corresponds to ‘one decay per disintegration per second.
[CBSE Marking Scheme 2016]
Commonly Made Error
- Few students wrote the SI unit as ‘Curie’.