2011
Physics
67e856d33cf20db308447ec1
A sample of radioactive substance, whose half-life is 16 days, registers 32 decays per second. How long will it take for the rate of decay to reduce to 2 decays per second?
A.
80 days
B.
64 days
C.
48 days
D.
32 days
Correct Answer: 64 days
Explanation
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