The half - life of a radioactive element which has only 1 / 32 of its original mass left after lapse of 60 days us

The half - life of a radioactive element which has only 1 / 32 of its

1.	The half - life of a radioactive element which has only 1 / 32 of its original mass left after lapse of 60 days us
A.	12 days
B.	32 days
C.	60 days
D.	64 days
Answer» B. 32 days

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The half - life of a radioactive element which has only 1 / 32 of its original mass left after lapse of 60 days us

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