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Plutonium decays with half life of 24000...

Plutonium decays with half life of 24000 years. If plutonium is stored for 72000 years, the fraction of it that remains is

A

`1//8`

B

`3//8`

C

`7//8`

D

`1//4`

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The correct Answer is:
A
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AAKASH SERIES-NUCLEI-Exercise-II
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