2. 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
o 3/4th of it will disintegrate in two months
o it will completely disintegrate in four months
o 1/8th of it will remain intact at the end of four months
o it will completely disintegrate in two months V
Ans: D
o 3/4th of it will disintegrate in two months
o it will completely disintegrate in four months
o 1/8th of it will remain intact at the end of four months
o it will completely disintegrate in two months V
Ans: D
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