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The probaility that a certaun radioactiv...

The probaility that a certaun radioactive atom would get disintefrated in a time equal to the mean life fo the radioactive sample is

A

`0.37`

B

`0.63`

C

`0.50`

D

`0.67`

Text Solution

Verified by Experts

The correct Answer is:
B
Required probability `P(t) = (N_(0)(1-e^(-lambdat)))/(N_(0)) = 1-e^(-lambda((1)/(lambda)))= 0.63`
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