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Half lives for alpha and beta emission...

Half lives for `alpha` and `beta` emission of a radioacative materila are 16 years and 48 years respectively. When material decays giving `alpha` and `beta` emission simultaneously, time in which `3//4^(th)` material decays is .

A

29 years

B

24 years

C

64 years

D

12 years

Text Solution

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The correct Answer is:
B
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