The relation between half`-`life period `(t_(1//2))` and disintegration constant `(lambda)` is expressed as

Options

A. `lambda=(0.693)/(t_(1//2))`
B. `lambda=0.693t_(1//2)`
C. `lambda=(693)/(t_(1//2))`
D. `lambda=693t_(1//2)`

Answer

A

Explanation

`lambda or K=(0.693)/(t_(1//2))`