1.

2 gm of a radioactive sample having half life of 15 days was synthesised on 1st Jan 2009. The amount of the sample left behind on 1st March. 2009 (including both the days)?

A. 0.125 gm
B. 0 gm
C. 0.5 gm
D. 1 gm
Answer» B. 0 gm


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