The half-life period of a radioactive element is 140 days

PHYSICS · Single correct · CBSE · Physics · Nuclei · Nuclei

Problem

The half-life period of a radioactive element is 140 days. After 560 days, one gram of element will reduce to: (1) 1/2 g (2) 1/4 g (3) 1/8 g (4) 1/16 g

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