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’.


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