A radioactive sample with a half-life of 1 month has the label: ?Activ – McqOptions

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1.	A radioactive sample with a half-life of 1 month has the label: ?Activity=2 micro curies on 1.8.1991.'' What will be its activity two months later [CBSE PMT 1992]
A.	1.0 micro curies
B.	0.5 micro curies
C.	4 micro curies
D.	8 micro curies
Answer» C. 4 micro curies

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