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Starting with a sample of pure .^(66)Cu,...

Starting with a sample of pure `.^(66)Cu, 7//8` of it decays into `Zn` in `15` minute. The corresponding half-life is:

A

`7(1)/2` minutes

B

10 minutes

C

14 minutes

D

5 minutes

Text Solution

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The correct Answer is:
D
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