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MediumQ. No. what-is-the-unit-of-radioactivity

What is the unit of radioactivity?

Last Updated: 25 Jun 2026

ARoentgen

BBecquerel

CCurie

DGray

Correct Answer: BecquerelYour Answer: B

Explanation

Radioactivity is measured in Becquerel (Bq) in SI system. 1 Bq = 1 decay/second.

Important Notes

1 Curie = 3.7×10¹⁰ Bq

SSC CGL Physics

SSC CGL

Answer

Becquerel

Exam Info

Asked in: SSC, Railway, Banking and other competitive exams.
Also asked in: RRB NTPC, CHSL, State PCS and online mock tests.
Topic: SSC CGL Physics

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