WBCS.LIVE practice question

What is the SI unit of radioactivity?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Ampere
  2. Volt
  3. Becquerel
  4. Curie

Correct answer and explanation

Correct answer: Becquerel

Explanation: āœ… Correct Answer: C) Becquerel šŸ“š Explanation: The Becquerel (Bq) is the official SI unit of radioactivity, named after the scientist Henri Becquerel. It is defined as the activity of a quantity of radioactive material in which one nucleus decays per second. While "Curie" is an older unit still used in some contexts, the Becquerel is the standard measure in scientific research. It provides a precise way to quantify the rate of spontaneous nuclear disintegration.