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UP POLICE SIUP POLICE SI Hard Mock Set 4Hard GK

UP POLICE SI Mock Test Set 4, Q31: Identify the correct answer for unit of radioactivity.

A. Candela
B. Ohm
C. Joule
D. Becquerel
Correct Answer: D. Becquerel
Explanation: Becquerel is SI unit of radioactivity. Category: UP POLICE SI. Set: 4.
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