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A sample of a radioactive substance has ...

A sample of a radioactive substance has `10^(6)` radioactive nuclei. Its half life time is 20 s How many nuclei will remain after 10 s ?

A

`1xx 10^5`

B

`2 xx 10^5`

C

`7xx 10^5`

D

`11 xx 10^5`

Text Solution

Verified by Experts

The correct Answer is:
C
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