Multiple choice general knowledge history

The activity of a radioactive source is expressed in what measurement?

  1. becquerels

  2. faradays

  3. radons

  4. velocity
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A Correct answer
Explanation

The activity of a radioactive source is measured in becquerels (Bq), named after Henri Becquerel, representing one nuclear disintegration per second. The curie is an older non-SI unit. Faradays measure electric charge, radons are not units, and velocity is completely unrelated to radioactivity.

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