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The half - life of I ^ (131) is 8 days. ...

The half - life of` `I ^ (131)` is 8 days. Given a sample of `I^(131)` at time `t = 0` , we can assert that

A

No nucleus will decay before `t=4` days

B

No nucleus will decay before `t=8` days

C

All nuclei will decay before `t=16` days

D

A given nucleus may decay at any time after `t=0`

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The correct Answer is:
D
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RESONANCE-NUCLEAR PHYSICS-Exercise-1 Part-2 Only one option correct type
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  3. Which of the following process represents a gamma- decay?

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  7. In one average-life,

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  15. In a uranium reactor whose thermal power is P=100 MW, if the average n...

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  16. Choose the statement which is true.

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  17. Fusion reaction takes place at high temperature because

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