Nuclear Physics and RadioactivityHard

Question

Initial decay rate of a substance is 800 disintegration/sec. If half life of substance is 1 sec. then after three second the decay rate will be : -

Options

A.800 disintegration/sec.
B.400 disintegration/sec.
C.200 disintegration/sec.
D.100 disintegration/sec.

Solution

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