At any instant the ratio of the amount of radioactive substances is 2 – McqOptions

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1.	At any instant the ratio of the amount of radioactive substances is 2 : 1. If their half lives be respectively 12 and 16 hours, then after two days, what will be the ratio of the substances [RPMT 1996]
A.	1 : 1
B.	2 : 1
C.	1 : 2
D.	1 : 4
Answer» B. 2 : 1

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