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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

A

`2xx10^(10)`

B

`1.5xx10^(10)`

C

Zero

D

Infinity

Text Solution

Verified by Experts

The correct Answer is:
B
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