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After three 'average life times' of a ra...

After three 'average life times' of a radioactive sample, the amount of substance remains x% of the original amount. Then, approximate value of x is

A

14

B

37

C

7

D

5

Text Solution

Verified by Experts

The correct Answer is:
D
The value of x
`x=(N)/(N_(0))xx100={e^(-lamda(3/(lamda)))}xx100=5%`
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