The correct relation between the transistor parameters $α$ and $β$ is -

$β=\frac{1-α}{α}$ $β=\frac{α}{1-α}$ $β=\frac{1+α}{α}$ $β=\frac{α}{1+α}$

$β=\frac{α}{1-α}$

The correct answer is Option (2) → $β=\frac{α}{1-α}$