A radio isotope has a half life of 75 years. The fraction of the atoms – McqOptions

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1.	A radio isotope has a half life of 75 years. The fraction of the atoms of this material that would decay in 150 years will be [BHU 1997]
A.	66.6%
B.	85.5%
C.	62.5%
D.	75%
Answer» E.

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