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It t(1//2) of A is 1000 yrs, then 'A' le...

It `t_(1//2)` of A is 1000 yrs, then 'A' left after t=2000 years

A

0.5

B

0.25

C

0.125

D

0.06725

Text Solution

Verified by Experts

The correct Answer is:
B
`n=(2000)/(1000)=2`
`N_(0)=100`
`N=(N_(0))/(2^(n))=(100)/(2^(2))`
`=(100)/(4)=25%`
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