87.5% decomposition of a radioactive substance complete in 3 hours. What is the half-life of that substance [MP PMT 2003]

87.5% decomposition of a radioactive substance complete in 3 hours. Wh

1.	87.5% decomposition of a radioactive substance complete in 3 hours. What is the half-life of that substance [MP PMT 2003]
A.	2 hours
B.	3 hours
C.	90 minutes
D.	1 hours
Answer» E.

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87.5% decomposition of a radioactive substance complete in 3 hours. What is the half-life of that substance [MP PMT 2003]

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