1 Nuclei
The initial activity of a sample is measured to be 3400 decays/seconds. After 145 seconds the decay rate is measured to be 150 decays/seconds. The half-life of the sample is approximately:
(1) 2 seconds.
(2) 6 seconds.
(3) 32 seconds..
(4) 27 seconds.
SOLUTION
A=A0e−λt
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