The half life period of a radioactive substance is best determined by counting the number of alpha particles emitted per second in a Geiger Muller counter from its known quantity. If the half life period of a radioactive substance is one month, then
A. $${\frac{3}{4}^{{\text{th}}}}$$ of it will disintegrate in two months
B. It will completely disintegrate in two months
C. It will completely disintegrate in four months
D. $${\frac{l}{8}^{{\text{th}}}}$$ of it will remain intact at the end of four months
Answer: Option B
This Question Belongs to Chemical Engineering >> Nuclear Power Engineering
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