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A radioactive substance has a half life of four months. Three - fourth of the substance would decay in
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- 3 months
- 4 months
- 8 months
- 12 months
Correct Option: C
Given half life (t1/2) = 4 months
Hence the amount of a radioactive substance remains half after 4 months. Hence, 3/4th of a substance would decay in two half lives i.e., 8 months.
