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Three fourthers of the active nuclei pre...

Three fourthers of the active nuclei present in a redioactive sample decay in 3/4s. The half life of the sample is

A

`(3)/(8) s`

B

`(3)/(4) s`

C

`(1)/(2) s`

D

1s

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Verified by Experts

The correct Answer is:
A
`3//4^(th)` nuclei decay in 2 half life.
`:.` Half life `= (3)/(4) xx (1)/(2) = (3)/(8) s`
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