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A and B are two radioactive substances w...

A and B are two radioactive substances whose half-lives are 1 and 2 yr, respectively. Initially 10g of A and 1 g of B is taken. The time (approxiamte) after which they will have same quantity remaining is

A

6.62 years

B

5 years

C

3.2 years

D

7 years

Text Solution

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The correct Answer is:
A
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