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If 8.0 g of radioactive isotope has a ha...

If `8.0 g` of radioactive isotope has a half life of 10 hours, the half life of `2.0 g` of the same substance is a)2.5 hours b)5 hours c)10 hours d)40hours

A

2.5 h

B

5 h

C

10 h

D

40 h

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The correct Answer is:
C
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