The half-life of a sample of a radioacti...

The half-life of a sample of a radioactive substance is 1 h. If `8xx10^(10)` atoms are present at t=0, then the number of atoms decayed in the duration t=2 h to t=4 will be

`2xx10^10`

`0.75xx10^10`

`1.5xx10^10`

Zero

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AAKASH INSTITUTE ENGLISH-NUCLEI-Assignment Section A Objective (One option is correct )

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