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Unit of decay constant of radiocative di...

Unit of decay constant of radiocative disintegration is

A

`time`

B

`min^(-2)`

C

`time^(-1)`

D

`time` `mol^(-1)`

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The correct Answer is:
C

For a radioactive disintegration,
`k=(2.303)/(t)log ""(N_(0))/(N)`
where, k is know as decay constant or disintegration constant.
The unit for decay constant is `"time"^(-1).`
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