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The decay constant of a radio active ele...

The decay constant of a radio active element, which disintergrates to `10 gms` from `20 gms` in `10` minutes is

A

`0.693_("min"^(-1))`

B

`6.93_("min"^(-1))`

C

`0.693_("sec"^(-1))`

D

`0.0693_("min"^(-1))`

Text Solution

Verified by Experts

The correct Answer is:
D

`lambda=0.693//T_((1)/(2))`
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