What is the half-life of a radioactive substance if 87.5% of any given amount of the substance disintegrates in 40 minutes [Kerala CET 1996]

What is the half-life of a radioactive substance if 87.5% of any given

1.	What is the half-life of a radioactive substance if 87.5% of any given amount of the substance disintegrates in 40 minutes [Kerala CET 1996]
A.	160 min
B.	10 min
C.	20 min
D.	13 min 20 sec
Answer» E.

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What is the half-life of a radioactive substance if 87.5% of any given amount of the substance disintegrates in 40 minutes [Kerala CET 1996]

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