nuclei Question 23
Question: Q. 1. Define the activity of a given radioactive substance. Write its S.I. unit.
R [OD I, II, III 2013]
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Solution:
Ans. The total decay rate of a radioactive sample is called the activity of the sample. Its S.I. unit is becquerel (Bq).
Commonly Made Error
- Many students could not recall the correct definition of activity.