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Mean life of a radioactive sample is 100...

Mean life of a radioactive sample is 100s . Then ,its half-life (in min) is

A

0.693

B

1

C

`10^(-4)`

D

1.155

Text Solution

Verified by Experts

The correct Answer is:
D
Half-life , `T/2 = T / 1.44 = 100 / 1.44` s
=69.44 s
`=69.44 / 100` `~~`1.115 min
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