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A radioactive sample with a half-life of...

A radioactive sample with a half-life of `1` month has the label : 'Activity=
`2` microcurie on 1-8-1991'. What would be its avtivity two months earlier?

A

1.0 micro curies

B

0.5 micro curies

C

4 micro curies

D

8 micro curies

Text Solution

Verified by Experts

The correct Answer is:
B
Activity becomes one fourth `= (2" micro curies")/(4)= 0.5` micro curies
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