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A radioactive element undergoes two diff...

A radioactive element undergoes two different types of radioactive disintegration, one with disintegration constant `lambda_(1)` and the other with `lambda_(2)`. The half-life of the element is

A

`(0.693)/(lambda_(1)+lambda_(2))`

B

`(0.693)/(lambda_(1)+lambda_(2)//2)`

C

`(0.693)(lambda_(1)+lambda_(2))/(lambda_(1)+lambda_(2))`

D

`(0.693)/(2)(lambda_(1)+lambda_(2))/(lambda_(1)+lambda_(2))`

Text Solution

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The correct Answer is:
A
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