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A radio active sample contains 10^(6)...

A radio active sample contains `10^(6)` radioactive nucleus it s half life is 20 sec . Number of remaining nucleus after 10 seconds.

A

7.09

B

`7.09 xx 10^(5)`

C

`79`

D

`709`

Text Solution

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The correct Answer is:
B
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MOTION-RADIOACTIVITY & NUCLEAR PHYSICS-Exercise -1
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