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WBCS Preliminary Examination 2022 — General Studies · Question 141 of 200

Q141
General SciencePhysics
Curie is unit of
  1. a.Radioactivity
  2. b.Temperature
  3. c.Heat
  4. d.Energy

Answer: (A) Radioactivity

The Curie (Ci) is a non-SI unit of radioactivity, named in honour of Pierre Curie. One Curie equals $3.7 \times 10^{10}$ radioactive disintegrations per second. The SI unit of radioactivity is the Becquerel (Bq), where 1 Ci = $3.7 \times 10^{10}$ Bq.

Q140 Whole paperQ142